no. 1731. FORMOSA \ y; .177.' Will 1 \ n .1 \ 1) UEI'TILEU si EJ \ EGE1L 1 1 1 



DISTEIRA CYANOCINCTA(Daudin . 



( Eerpet. Japan, L907, p. 428. 



As for the status of this species I may refer to the remarks under 

 the foregoing species. It appears to be common around Formosa. 



[DISTEIRA VIPERINA Schmidt .] 



(Herpet. Japan. L907, p. [34 



As this species lias been recorded from Hongkong and from Swa- 

 tow, on the mainland side of the Formosa Channel, there is every 

 reason to suppose that it also occurs on the island side, though not 

 actually recorded from there as yet. 



Genus PELAMYDRUS," now name. 



1890. Hydros Boulenger, Fauna Brit. India, Hop., p. :;i»7 (type //. platurus), 

 (not of Schneider, 1799). — Stejneger, Herpet. Japan, L907, p. 138. 



Under article 30, i, d, of the International Rules of Zoological 

 Nomenclature, Pallas' Coluber hydros becomes the type of Schneider's 

 genus Hydrus. h Latreille, in 1802, substituted for Hydras, which he 

 considered preoccupied by Hydra, the name Hydrophis. c The fol- 

 lowing year Daudin, considering Hydrophis inappropiate, as these 

 snakes inhabit the sea, substituted Pelamis for it. f/ Both of these 

 names being expressly designated as substitutes and without desig- 

 nated type must have for type the same species which is the type of 

 lhjdrus. e Gistel's Elaphrodytes of 1848 is in the same category, and 

 the genus comprising Linnaeus's well-known Anguis platura must be 

 given a new name. 



PELAMYDRUS PLATURUS (Linnasus). 



17ti(j. Anguis platura Linn.eus, Syst. Nat., 12. ed., vol. 1, p. 391. Hydrus 

 platurus Stejneger, Herpet . Japan, 1907, p. 439. 



"Of regular occurrence around Formosa." 



"From -TjAiuiit-, a young thunnv, and 'udpog, a water snake. 



b See opinion by International Committee of Zoological Nomenclature in Science 

 (n. s.),vol. 31, Jan. 28, 1910, p. 150. 



c"Noue croyona devoir, pour eviter la confusion, substituer le mol hydrophis, qui 

 vent dire serpent d'eau, a celui d'hydre ou d'hydrus de Schneider." Hist. Nat. Rep . 

 vol. 4, p. 193. 



<* Ce genre comprend trois especea lies out servi & Latreille pour former 



eon genre hydrophis; uniis comme ellea habitenl la mer, je lea ai appel^ea de prefe- 

 rence pilamides, e1 j'ai Bubstitue - le nom a" hydrophis aux orvets a queue plate et veni- 

 meux qui vivenl dans 1'eau donee." Hist. Nat. Hep., vol. 7, p. 361. 



e International Rules of Zoological Nomenclature, art. 30, n, f. 



