88 REPORT ON ZOOLOGY, MDCCCXLIII. 



of several Amphibia Ayama nupta, n. sp. ; Herpetodryas 

 cursor, Schl. j and Boa brachiura, Grundlach. (These Arch. 

 1840, i, p. 361.) 



A letter from Rusconi to Prof. Oken, Sur les vaisseaux 

 lymphatiques des Reptiles (Giornale del? Istituto Lom- 

 bardo, torn, vi, p. 158), is printed in Miiller's Archiv, (1843, 

 p. 241), where are given, together with it, some historical 

 notices respecting the lymphatic vessels of the Amphibia, 

 by the same author. 



CHELONII. On the Structure of the Retina of the Tor- 

 toise, by Adolph. Hannover. (Miiller's Archiv, 1843, p. 314.) 



SAURI. Several new genera and species in this division 

 have been instituted in the above-mentioned works. 



Chama-leo rhinoceros, Gray. (Aim. xi, p. 45.) Back and belly with a toothed 

 keel; occiput depressed, prismatic, with a central keel; nose with a broad 

 triangular projection, with a single smooth keel ou its inferior surface, and two 

 toothed ridges, separated by a deep sulcus, on the upper surface. Colour 

 dark, with white spots (in spirits), with a pale streak along the middle of 

 each side. Madagascar ? From the ' Voyage of the Sulphur.' 



Of the genus Proctotretus, Bell describes 14 species, in the 'Voyage of the 

 Beagle,' among which are four new : P. gracilis, corpora gracili, capitis 

 squamis Isevibus, uou imbricatis, aurium margine auteriore minute bi-trideu- 

 tato, collo vix plicato, squamis imbricatis serie unica squamarum suprala- 

 biah'um, femorum facie posteriore oninino grauulosa. Patagonia. 5 inch. 

 P. Brilonii, capite squamis Isevibus subconvexis ; auribus ovalibus, margiue 

 anteriore uuideutato ; squamis temporum coUique rotundatis Isevibus imbri- 

 catis ; colli muiimis ; serie uuica squamarum supralabialium ; squamis dorsi 

 rhomboidcis, cariuatis, postice acumiuatis ; abdominis squamis omnibus 

 integris ; femorum facie posteriore omiiino grauulosa. Patagonia. 5 i inch. 

 P. Kinyii, squamis capitis ueque imbricatis uec carinatis ; supralabialibus in 

 serie unica; aurium margiue auteriore granuloso, interdum umdeutato; 

 squamis dorsal ibi is cariuatis, postice acumiuatis; femorum facie posteriore 

 praecipue granulosa, sed portione parva caudam versus squamis parvis rotun- 

 datis imbricatis ted A.. Patagonia. 6^ inch. P. Darwinii, corpore sub- 

 depresso ; capite squamis uumcrosis parvis, subclevatis, looAibus non imbri- 

 catis ; aurium margiue anteriore intcgro ; temporibus colloque granulatis ; 

 serie unica sqiiamanim supralabialium; facie posteriore femorum parti in 

 granulosA, ]i;irliin squamis imbricatis tecta. North Patagonia. 5^ inch. 



Bull (1. c.) proposes a new genus, Diploleemus, to be placed near Leiosaurus, 

 .Bibr. Caput breve, latuin, subtriangnlarc. Aurcs parvse, ovatse, mai'giue 



