124 



PROCEEDINGS OF THE ACADEMY OF [April, 



Tantilla B. and G. (Cat. No. Am. Serp., p. 131, 1853). 



Type Tantilla coronata B. and G. By original designation. 



= Homalocraniuni Dum. and Bib. (Erp. Gen., YIl, 855, 1854). Type H. 

 planiceps (not of Dum. and Bib., Mem. Acad. Sci., 1853, p. 490. Tj-pe 

 Calamaria hrachyorros Hallow.). 



Elaps Schneider (Hist. Amph., II, p. 289, 1801). 



Type Ela'ps lemniscatus linn. By designation of Gray (Ann. of 

 Philos., 1825, p. 206). 



Fleming (Philos. ZooL, II, p. 295, 1822) mentions Elaps lacteus, but it 

 does not appear that in this work types are selected as required by the 

 present rule. 



VIPBRID^. 

 Anoistrodon Beauvois (Trans. Am. Philos. Soc, IV, p. 381, 1799). 



Monotype Agkistrodon mokasen Beau. (= Boa contortrix Linn.). 



Beauvois says (p. 381) under Agkistrodon, "In this last division 

 should be arranged the mokasen," which on p. 370 he refei"s to as 

 Agkistrodon mokasen. 



Sistrurus Garman (No. Am. Rept., p. 110, 1883). 



Type Crotalus miliarius Linn. By substitution. 



Crotalus Linn. (Syst. Nat., Ed. X, p. 214, 1758). 



Type Crotalus horridus Linn. By designation of Gray (Ann. of 

 Philos., 1825, p. 205). 



A.AIPHIBIA. 



According to Dr. Stejneger Batrachia was used for the first time by 

 Batsch (1788) as an exact synonym of Salientia Laurenti (1768), for 

 which reason he thinks it should not be used for a di\ision of wider 

 scope. Brongniart (1800) had very nearly an exact conception of the 

 contents of this class, for he even suspected that the csecilians belong 

 to it, but he used only the vernacular '' batraciens." All other authors 

 omitted csecilians down to 1811, when Oppel used Nuda for the class, 

 with orders (I) Apoda, (II) Ecaudata, (III) Caudata. Merrem (1820) 

 used Batrachia with (I) Apoda, (II) Salientia, (III) Gradientia. 



Amphibia Linn, included reptiles and amphibians, but was never 

 used in exact form until Gray correctly applied it (Ann. of Philos. 

 (n. s.), 10, p. 213, 1825). 



By strict priority the name would be Nuda Oppel, but fortunately 

 it is not necessary to replace a well-known class name by one so 

 obscure. 



