Hobart M. Smith

Name: The Tadpoles of Bufo cognatus Say
Author: Hobart M. Smith

Biographical details

Hobart M. Smith published works such as The Tadpoles of Bufo cognatus Say, The Systematic Status of Eumeces pluvialis Cope and Kyphosis and other Variations in Soft-shelled Turtles. These writings evoke Trionyx, hump and species.

Quotes by Hobart M. Smith

Hobart M. Smith, Kyphosis and other Variations in Soft-shelled Turtles

“ Although costal plates and the vertebral column grow in direct proportion to each other throughout life from a period shortly after hatching, the vertebral column apparently grows more rapidly than the costals shortly before and possibly also shortly after hatching, at least in kyphotic and probably also in normal specimens. An exceptionally early date of fusion of costal plates and ribs would thus result in a kyphotic condition, and it may well be assumed that the earlier the fusion, the greater the hypertrophy would be. ”

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Source: Gutenberg

Hobart M. Smith, Hybridization Between Two Species of Garter Snakes

“ The middorsal stripe is not sharp-edged; the lips are barred exactly as in marciana, the postrictal crescent is well defined, and the lateral light stripe extends onto the fourth scale row only very slightly. I refer the specimen to T. radix on the basis of the middorsal light stripe which still is not as irregular as in marciana, upon the nature of the lateral dark spots (not fused) , and upon the slight extension of the lateral light stripe onto the fourth scale row. Yet the specimen is definitely atypical of radix ”

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Source: Gutenberg

Hobart M. Smith, Kyphosis and other Variations in Soft-shelled Turtles

“ Agassiz and others have shown that the costal plates normally do not fuse with the ribs by the time of hatching; the fusion then does not normally occur in the embryonic stage. Presumably, once fused, the costal plates and vertebral column normally have equal growth rates, since the height/width ratio does not change significantly with increased size. It is well known that fusion takes place in young specimens soon after hatching; in all skeletons examined of this genus, from the smallest (62 mm. in length) to the largest (295 mm.) , the fusion has occurred. ”

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Source: Gutenberg

Hobart M. Smith, The Systematic Status of Eumeces pluvialis Cope

“ One occurs from western New York to northern Georgia, and west to Kentucky, in the Appalachian uplands or northward of them; a second centers about the Ozark uplands but extends into northwestern Louisiana, eastern Texas, central Oklahoma, eastern Kansas, and nearly as far east as the Mississippi river in northern Arkansas and southern Missouri; the third population occurs in extreme southern Alabama and Mississippi.
These populations differ in at least the color of the young. Specimens from the eastern area are marked at birth like the adults ”

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Source: Gutenberg

Hobart M. Smith, Kyphosis and other Variations in Soft-shelled Turtles

“ Now if Fitzinger's type designation is accepted, the name Trionyx is to be applied to that group containing granosa (only one other form is known in the genus, and both forms occur only in India and Burma) , whereas the name Amyda of Geoffroy (op. cit., p. 1) is applied to the genus (as now recognized) which includes triunguis and some 20 other species of Asia and North America. The type of Amyda is a typical member from Asia (cartilagineus Boddaert) . ”

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Source: Gutenberg

Hobart M. Smith, Hybridization Between Two Species of Garter Snakes

“ The chief characters distinguishing Thamnophis radix (Baird and Girard) and T. marciana (Baird and Girard) in southern Kansas are:
Typical specimens of radix are available from several localities in Morton County of southwestern Kansas (Spring Creek; twelve miles and eighteen miles north of Elkhart; Elkhart) ”

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Source: Gutenberg

Hobart M. Smith, Kyphosis and other Variations in Soft-shelled Turtles

“ There seems to be no well-established accommodation for the difference in growth, since the hump produced by it varies considerably in form.
There is no trend from small to large specimens in size of the hump; large and small humps occur in both large and small specimens. Accordingly it seems that the humped condition is developed in the late embryo or early post-embryonic life, and does not later change. ”

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Source: Gutenberg

Hobart M. Smith, The Tadpoles of Bufo cognatus Say

“ If on the other hand, the specimen figured by Wright is properly identified, then the two species must in reality be very closely related. A direct comparison of positively identified tadpoles of each species is much to be desired. ”

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Source: Gutenberg

Hobart M. Smith, Kyphosis and other Variations in Soft-shelled Turtles

“ In weighing these two alternatives, the practical value of maintenance of the "status quo" is not here important, for the whole system of nomenclature in this field is completely upset; any conclusive decision would be of great practical value and one alternative [Pg 123] holds no special, practical advantage over the other. ”

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Source: Gutenberg

Hobart M. Smith, The Systematic Status of Eumeces pluvialis Cope

“ Whether the southern population belongs to one of these races or is distinct is unknown. Until this point is settled the name for the western race will remain in doubt. The eastern race is the typical one, Eumeces a. ”

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Source: Gutenberg

Hobart M. Smith, Kyphosis and other Variations in Soft-shelled Turtles

“ Kyphosis and other Variations in Soft-shelled Turtles By HOBART M. SMITH
Kyphotic (hump-backed) soft-shelled turtles have been known for many years in Asia and America. Gressitt (Peking Natural History Bulletin, 2 (pt. 4) : 413-415, figs. 1-5, 1937) has reviewed accounts of such turtles, and recorded the anomaly in Amyda sinensis (Wiegmann) and A. steindachneri (Siebenrock) of Asia and in unidentified species in the United States. Records of kyphosis in American species apparently are few. ”

Hobart M. Smith

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