108 



PROCEEDINGS OF THE ACADEMY OF 



Sal. rubriventris (Sept. 1818) Green, J. A. N. S. i, 353 (ad. living). 



Sal. 7iiaculaia (Sept. 1818) Green, J. A. N. S. i, 350 (bleached in spirits). 



Sal. subfusca (Sept. 1818) Green, J. A. N. S. i, 351 (ad. in spirits?) 



Pseudotriton subfuscus (1838) Tscli., Class. 



Myceioglossa ruber Bibron fide Bon. Fauna Italica. 



Siren operculata (1796) Pal de Beauv. Am. Phil. Trans, iv, 279, pi. — , f. 3 

 (larva). 



Proteus neocsssariensis (Sept. 1818) Green, J, A. N. S. 1, 358 (larva bleached 

 in spirits). 



Pseudoiriton ruber Baird, Journ, A. N. Sci. Phil, i, 286; Hallowel! 1. c, 347. 



Spelerpcs ruber Gray, Cat.B. M. 1850, 45. 



There are several varieties of this species, which, though quite distinct, pass 

 into each other : 



Var. P. r. sticticeps Baird, S. Carolina. 



Var. P. r. flavissimus Hallowell ; Pseudotriton flavissimus Hallowell, 

 Proceed. A. N. Sci. Phil. 1850, 130, Georgia. 



Var. P. r. montanus Baird ; Pseudoiriton montanus Baird, Journ. A. N. S. 

 i, 287 — 293; Gray 1. c, 46. The Allegheny Mountain region from Pennsyl- 

 vania to S. Carolina. 



Habitat. — The Spelerpes ruber is distributed over the Eastern district of 

 North America from Maine to Minnesota, and to Texas and Florida. 



GYRINOPHILUS Cope. 



Tongue supported only by the glossohyal pedicel, boletoid ; cranium fully 

 ossified, the premaxillary bones remaining distinct, and embracing a fonta- 

 nelle. Digits entirely distinct, 4—5. 



This genus is now first distinguished from Spelerpes, on account of the 

 marked peculiarity ef the premaxillary bone, in which it resembles Plethodon 

 rather than the first named. But one species is as yet known. It has a super- 

 ficial resemblance to the Spelerpes ruber, but differs in several osteological 

 peculiarities. Its nasal bones are well separated, and the prootic squamosal 

 crests are peculiar. The anterior or prootic crest is short, distinct and curved 

 inwards and backwards ; that on the proximal e.xtremity of the squamosal 

 curves towards it, but leaves a considerable interspace. This is occupied 

 by two osseous processes like two teeth of a comb. In S. ruber the an- 

 terior crest only is present, and forms a rectangle, the anterior limb being 

 transverse, and the angle inwards. The nasal bones also are in contact 

 across the premaxillary spines. 



The type of the genus remains for a more than usually long period in the 

 larval condition, and just before its metamorphosis is quite identical in its 

 osteological characters with the genus Necturus. 



Costal plicse 1 ; head wide, width less than seven times to groin, not over 

 twice to axilla; a strong canthus rostralis ; tail rounded at the base, not fin- 

 ned; large; uniform purple-gray above G. porphyriticus. 



Gtrinophilus porphyeiticus Green. 



Sahrmandra porphi/ritica Green, Cont. Mac. Lye 1827, vol. i, pi. 1, fig. 2. 

 Holbrook, N. Am. Herpet. 2 ed, v, 83, pi. 28. 



Sal. salmonea, (1838), Storer in Hoi. Herp. 1st ed. iii, pi. 22. (1842) Hoi. 

 Herp. 2d ed. v, 33. pi. 8. (1840) Storer, Mass. Rep. 248. Dekay N. Y. Rept. 

 76, pi, 16, f. 39. Pseudotriton sabnoneus Baird, J. A. N. Sci. i, 287. Hallowell 

 1. c. iv, 347. Spelerpes salmoneus Gray, Catal. B. M. 1850 — 46. Cope, Journ. 

 A. N. Sci. Phil. 1856, 99. Sp. porphyriticus Gray, 1. c. 



There can be little doubt that, as Baird has suggested, this is the Salaman- 

 dra porphi/ritica of Green. The angulation and pale color of the canthus ros- 

 tralis is described accurately, as well as the color. The large larva, four 

 inches long, is only referable to this species. The Amblystoma m i c r o s t o- 

 mum, which Holbrook and Hallowell have imagined to be Green's species, 



[May, 



