HEUPETOLOGY. 81) 



Jci'vi. Nares maguse rotunda?. Collum infra transverse, ad latera lougitudi- 

 ualiter plicatum. Corpus subdcpressum, non cristatuni. Cauda teres, bre- 

 viuscula, Iscvis. Pedes breves, robusti. Squama capitis nunierosse, parva?, 

 rotuudatse, uon imbricatse corporis atque caudee supra minima?, laeves, con- 

 vexa?, paulo imbricatse, infra lacves, plaute. Pori femorales et prseanales in 

 utroque sexu uidli. Denies palatini, uulli. D. Darwinii, squamis capitis 

 couvcxis ; cauda corpore cum capite longiore. 7". D. Bribonii, squamis 

 capitis plauis ; cauda corpore cum capite breviore. 74". Both from Pata- 

 gonia. Port Desire. 



Leiocephalus (Holotropis, Bibr.) Grayii, Bell (1. c.), crista dorsali elevata, 

 cauda subcompressa ; squamis veutralibus rhomboideis, l&vibus ; margiue 

 auteriore meatus auditorii quadridentato ; squama occipitali magua. 9^ inch. 

 Galapagos Islands. 



Bell has also instituted a new genus, Centrum, between Oplitra and Doiy- 

 pJiorus : Caput breve, triangulare. Aures magnaj, antice cutis plica hand 

 dentata partini celatse. Nares magnse rotundae. Gula transverse subplicata. 

 Collum atque corpus baud cristata, hoc depressum, latiun, cute longitudi- 

 ualiter plicata. Cauda teres, basin versus subdepressa, squamis fortibus 

 spiuosis verticillatis. Squama capitis numerosa?, parva?, rotundatse, uon 

 imbricatse corporis minima;, rotund*, subcouvexa;, Iseves. Pori femorales 

 et praeanalcs nulli. Denies palatini. One new species, C. jlayellifer. 

 74". Habitat? 



Naultinus Grayii, Bell, omuino viiidis ; froute subconcavo ; squamulis 

 capitis planis. New Zealand. 



Ameiva longicauda, Bell, squamis, suprahumeralibus rhomboideis, imbri- 

 catis ; subfenioralibus transversim hexagouis ; abdomiualibus in seriebus 

 decem longitudiualibus dispositis ; cauda, corpore cum capite plusquam 

 duplo lougiore, squamis medio carinatis, et ad marginem subcarinatis. 7%". 

 Patagonia. 



Agama nnpta, DC Filippi (1. c.), capite muricato, squamis dorsi omnibus 

 aequalibus, cariuatis ; lateralibus Isevibus miuutissimis ; cauda sub vert icillata ; 

 gula flavo cajruleoque marmorata. Found by Osculati, at the ruins of Per- 

 sepolis. 



Guyon observed, in Algiers^ tlie Zureig, which appears to 

 be the Jaculus of the ancients. It is a new species of Seps, 

 having three toes on each foot ; it is of a bronze colour 

 above, and whitish gray beneath, and is uncommonly agile ; 

 it drank daily. (Comptes rendus, xvi, p. 1011.) 



SERPENTES. J. J. Bachtold has written under the 

 presidium of W. v. Rapp, as an inaugural dissertation, 



