Pieridae

“ In the Pieridae there are two anal nervures in the hindwing, while the second anal nervure in the forewing runs into the first; the larva is cylindrical and hairy without an osmaterium. The pupa has a single “nose-horn,” and in the more highly organized genera there is no mobility whatever between its abdominal segments. The wintering pupae of the common cabbage butterflies (Pieris brassicae and P. rapae) are common objects attached to walls and fences and their colour harmonizes, to a great extent, with that of their surroundings. ”

“ No one, in fact, can understand the perfection of the imitation who has not seen these species in their native wilds. So complete is it in general effect that in almost every box of butterflies, brought from tropical America by amateurs, are to be found some species of the mimicking Pieridæ, Erycinidæ, or moths, and the mimicked Heliconidæ, placed together under the impression that they are the same species. Yet more extraordinary, it sometimes deceives the very insects themselves. ”

“ Recent research has, however, shown that this is seldom the case, and that as a rule the nucleus, which must be present if a pearl is to be formed, is the larva of some highly-organized parasite whose life-history is certainly complicated but as yet is not completely known. The knowledge, however, which we already possess{4} enables us to do much to ensure steady success in a very speculative industry; and with complete knowledge there is no reason why pearl fisheries should not be under as good control as oyster fisheries now are. ”

“ I come now to speak of the Pyrates infesting the West-Indies, where they are more numerous than in any other Parts of the World, on several Reasons:
First, Because there are so many uninhabited little Islands and Keys, with Harbours convenient and secure for cleaning their Vessels, and abounding with what they often want, Provision; I mean Water, Sea-Fowl, Turtle, Shell, and other Fish; where, if they carry in but strong Liquor, they indulge a Time, and become ready for new Expeditions before any Intelligence can reach to hurt them. ”

“ It has been the Case heretofore, that when a single Pyrate has been suffered to range the Seas, as not being worth the Notice of a Government, he has by Degrees grown so powerful, as to put them to the Expence of a great deal of Blood and Treasure, before he was suppress’d. We shall not examine how it came to pass, that our Pyrates in the West-Indies have continually increased till of late ”

“ Of all the instances of bird attacks collected together by Marshall [90] more than one-third are instances of attacks upon this group alone. If birds are the agents by which mimetic likenesses are built up through the cumulative selection of small variations, how can the rarity or absence of mimetic Pierids in the Old World be accounted for? For the species of Pierids, like the species of other families, shew considerable variation, and if this process of selection were really at work one would expect to find many more Pierid mimics in these regions than actually occur. ”

“ I must observe another Thing, that the Pyrates generally shift their Rovings, according to the Season of the Year; in the Summer they cruise mostly along the Coast of the Continent of America, but the Winters there, being a little too cold for them, they follow the Sun, and go towards the Islands, at the approach of cold Weather. Every Man who has used the West-India Trade, knows this to be true ”

“ A parasite bores into the shell of the pearl bearer, and when felt by the animal it immediately fortifies itself by covering up the spot with its pearly secretion; the parasite pushes on, the oyster piling up until an imperfect pearl attached to the shell is the result. The clear oval pearls are formed in a similar way, only in this case a bit of sand has become lodged in the folds of the creature, and in its efforts to protect itself from the sharp edges, the bit becomes covered, layer by layer, and assumes naturally an oval shape. ”

“ And so, too, the pinna, which lives at the bottom, engenders the most transparent sort of pearl; and it produces them also very pure and of large size. But that which keeps near the surface, and is constantly rising, is of a smaller size and a worse colour, because it is affected by the rays of the sun. But those who hunt for pearls are in danger when they hastily put their hand into the opening of the shell, for immediately the fish closes its shell, and very often their fingers are sawn off; and sometimes they die immediately. ”

“ The Micro-lepidoptera are divided into five main groups—Pyralides, Pterophori, Crambi, Tortrices, and Tineæ, each of [Pg 291] which is divided into families and genera, as we have seen in the case of the 'Macros.'
Pyralides
The Pyralides may be easily distinguished by the proportionately long fore wings, long legs, and elongated abdomen. Some of them have wings of a pearly lustre, and are accordingly known popularly as the 'Pearls.' Some species fly in bright sunshine, others appear on the wing before sunset, and fly till dusk; others, again, are purely nocturnal in their habits. ”

“ When the Avicula is large, well formed, and with ample space for individual development, pearls scarcely occur at all, but when the shells are crowded together, and become humped and distorted, as well as affording cover for all kinds of marine worms and parasitic creatures, then pearls are sure to be found. Pearls of inferior value and size are also produced by Placuna placenta, many species of Pinna, the great Tridacna, the common Ostrea edulis, and several other marine bivalves. ”

“ As a consequence, pearls are more numerous in oysters which have been long infected, where the worms are older and more liable to die. This parasitic worm has been traced from the pearl-oyster to the trigger-fishes, which eat the pearl-oysters, and thence into certain large fish-eating rays, where it becomes sexually mature and produces embryos which enter the pearl-oyster and begin a new cycle of life-phases. ”

“ And then Pierrots, Pierrots everywhere, of every conceivable motley and shape. Blue Pierrots and yellow Pierrots! white or black, purple with orange frills, and orange with purple frills, black skull caps and tall white peaks. Pierrots of satin, and Pierrots of gingham! Cool and active! Ye gods! how active! Bohemian smartness, it seems, demanded that its Pierrots should be bright and amusing and active.
From his point of vantage on the floor of the hall Peter scanned the semicircle of boxes where sat more puppets, hundreds of them, watching the thousands down below. ”

“ Uncle Charlie said. “Although they are the pearl diver’s greatest enemy, they can also help produce the pearl.”
“How?” Biff wanted to know.
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“The best pearl is the perfectly round pearl. The foreign body which gets into the oyster must be perfectly round to produce the perfect pearl. These round objects are the eggs of parasitic worms. The adult worms are the parasites of sharks.”
“So where you find sharks, you can find pearls?” Biff asked.
“Not exactly, Biff. What I mean is this: where there are pearl fisheries, the perfect pearls come from the eggs the shark’s parasites lay.” ”

“ Therefore I say, if the Men of War take the same Track, the Pyrates must unavoidably fall into their Mouths, or be frighted away, for where the Game is, there will the Vermin be; if the latter should be the Case, the trading Ships, as I said before, will pass unmolested and safe, and the Pyrates be reduced to take Refuge in some of their lurking Holes about the uninhabited Islands, where their Fate would be like that of the Fox in his Den, if they should venture out, they would be hunted and taken, and if they stay within they must starve. ”

“ Genus Pyrula. Pl. XI. Animal. Unknown.
Shell. Pyriform on account of the depression of the spire, which distinguishes it from the Fusus; the canal conical, very long or middling, sometimes a little sloped; aperture oval, rather large; the columella edge somewhat excavated, entire and trenchant; an operculum. Found in the Northern and American seas. Twenty-nine living species. Six fossil.
Pyrula salmo. P. carica. P. candelabrum. P. tuba. P. melongena. P. ficus. P. spirata. P. elongata. P. bezoar. P. angulata. P. nodosa. P. abbreviata. P. deformis. P. lineata. P. plicata. P. canaliculata. ”

“ No doubt the germ of the special form of tape-worm which troubles oysters, irritates to pearl-making, and passes through other transformations in other hosts, and completes its cycle in the body of a shark, would be too minute for inexpert detection. The fact that molluscs do intern foreign and obnoxious substances is testimony to their decency and love of cleanliness, and so may the pearl be still accepted as the embodiment of purity. Though all its little soul be dirt, the pearl is pure, and but for the dirt or the germ of a filthy ailment it would not be pearl. ”

“ Pierre is not exempt from other peculiar plagues of tropical life; and you cannot be too careful about examining your bed before venturing to lie down, and your clothing before you dress;—for various disagreeable things might be hiding in them: a spider large as a big crab, or a scorpion or a mabouya or a centipede,—or certain large ants whose bite burns like the pricking of a red-hot needle. No one who has lived in St. Pierre is likely to forget the ants.... ”

“ While outwardly there is no positive indication of the existence of pearls, they are relatively scarce in young mollusks, and likewise in those having a normal, healthy appearance, with smooth exterior free from blemishes, and they are found generally in the older, irregular, and deformed shells, which bear excrescences and the marks of having parasites. ”

“ All foreign bodies—such as small parasites, diatoms, minute pebbles, etc.,—irritate the tender tissues of the mollusk, and stimulate the pearly formation which in course of time covers them. At first the nacreous covering is very thin; but with added layer after layer the thickness is enhanced, and the size of the object increases as long as it remains undisturbed and the mollusk is in healthful growth.
Chemically considered, aside from the nucleus, the structure of pearls is identical in composition with that of the nacre of the shell in which they are formed. ”

“ Christophers, loaden with Provisions and some Horses; the Pyrates mounted the Horses and rid them about the Deck backwards and forwards a full Gallop, like Madmen at New-Market, cursing, swearing, and hallowing, at such a Rate, that made the poor Creatures wild, and at length, two or three of them throwing their Riders, they fell upon the Ship’s Crew, and whipp’d, and cut, and beat them in a barbarous Manner, telling them, it was for bringing Horses without Boots and Spurs, for want of which they were not able to ride them. ”

“ The Carolina Men gave the Pyrate a Broadside, and then Boarded him, one Sloop getting upon his Quarter, and the other on his Bow; Worley and the Crew, drew up upon the Deck, and fought very obstinately, Hand to Hand, so that in a few Minutes, abundance of Men lay weltering in their Gore; the Pyrates proved as good as their Words, not a Man of them cry’d out for Quarter, nor would accept of such, when offered, but were all killed except the Captain and another Man, and those very much wounded, whom they reserved for the Gallows. ”

“ The Birds of Prey are so widely distributed over the world's surface that their general distribution calls for few remarks. Of the four families all but one are cosmopolites, Vultures alone being absent from the Australian region, as well as from Indo-Malaya and Madagascar. If we take the sub-families, we find that each region has several which are confined to it. The only parts of the world where there is a marked deficiency of Accipitres is in the islands of the Pacific; and it may be noted, as a rule, that these birds are more abundant in continents than in islands. ”

“ As Kadir Munshi says, “pearls have no pedigree”; their beauty is not to be traced to their origin, but exists wholly in the excellence of the surroundings in which they develop.
The pearl-bearing mollusks are luxurious creatures, and for the purpose of protecting their delicate bodies they cover the interior of their shells with a smooth lustrous material, dyed with rainbow hues, and possessing a beautiful but subdued opalescence. ”

“ Specimens of the Prickly Pear have been known to grow after lying on a dry floor, in a closed room, for six months and they have blossomed when left in this condition for some time.
These plants, which are more or less succulent, are usually protected from the ravages of animal life by a formidable array of spines and prickles. Those who have carelessly handled our common Prickly Pear can attest to the intensely irritating character of its defensive armor. Thus does nature provide for the care of its otherwise defenseless forms. ”

“ When the pearl-fish are taken they are placed under a thick layer of salt in earthen-ware vessels; as the flesh is gradually consumed, the pearls are disengaged and fall to the bottom of the vessel.
There is no doubt that pearls wear out with use, and will change their color, if neglected. All their merit consists in their whiteness, large size, roundness, polish, and weight; qualities which are not easily to be found united in the same. Indeed no two pearls are ever found perfectly alike ”

“ But, although pearls depend upon the healthy, not the diseased activity of the mantle, it is clear that there must be some unusual condition present for their formation; since the secretion of nacre does not spontaneously assume the form of pearls. What is the unusual condition? Naturalists are at present divided into two camps, fighting vigorously for victory. The one side maintains that the origin of a pearl is this—an egg of the oyster has escaped and strayed under the mantle; or the egg of a parasite has been deposited there ”