in the Collection of the British Museum. 27 



Chrysopelea vicina. 



Scales in seventeen rows, those on the back keeled. All the 

 scales conspicuously shorter and less imbricate than in Chr. 

 rhodopleuron, to which this species is nearly allied. Ventrals 

 221 ; subcaudals 146. Rostral shield not twice as broad as 

 deep. Prgeocular in contact with the vertical. Temporals 

 2 + 2 + 2. Uniform brownish olive ] greenish olive after the 

 loss of the epidermis ; lower parts uniform olive. 



One specimen from the island of Misol. Total length 

 44 inches, the tail being 13 inches long. 



This is not merely a local variety, as we have received the 

 true Qhrysopelea rhodojjleuron from the same locality. By the 

 characters given, the new species will be readily recognized. 



Tropidonotus ferox. 



Gunth. Ann. & Mag. Nat. Hist. November 1863. 



Mr. Cope (Proc. Ac. Philad. 1868, p. 309) places this as a 

 synonym of T. mortuarius (Schleg.). The history of the latter 

 name is shortly as follows : — 



1. The name was originally given by Daudin (Hist. Nat. 

 E.ept. vol. vii. p. 187) to an Indian snake figured by Russell 

 on pi. 28 and described on p. 33. This snake is a dark variety 

 of Tropidonotus quincunciatus ] and therefore Coluber mortua- 

 rius of Daudin is a synonym of this Indian species. 



2. Kuhl (Beitr. z. Zool. p. 96) misapplied the name to an 

 example in his collection, quoting Russell, but not Daudin, 

 and apparently ignorant of the locality where his example was 

 obtained. 



3. Schlegel (Essai, p. 330) having received the example 

 mentioned by Kuhl and misnamed by him " Coluber mortua- 

 riuSj^ adopts this erroneous nomenclature, adding to the con- 

 fusion by giving incorrect references to the works of Russell 

 and Daudin. However, he describes Kuhl's specimen in a 

 perfectly lucid manner*. 



It is now evident that the specimen from Kuhl's collection 

 is identical with the West- African species to which I first 

 gave a distinct name, viz. Tropidonotus ferox. 



Tretanorhinus nigroluteus. 



Tretanorhinus nigroluteus, Cope, Proc. Ac. Nat. Sc. Philad. 1861, p. 298. 

 Helicops Agassizii, Jan, Iconogr. li\T. xxviii. pi. 2. fig. 1. 



(Nicaragua), Panama; purchased of the Zoological Society 

 of London. Abdomen and two outer series of scales bright 



* The species is figured, by Jan under the same name, livr. xxviii. pi. 1. 

 fis. 2. 



