LS 



i ITALOGUE OF SHIELD REPTILES. 



... »t '. Spec Mtu. OoU. Surg. 

 p. 157. uoa. 711, 712, 71). 716 j 11. ft. of London CRay, 

 25. r. I". 



/. SkeUt. Krokod. t. 8 & 9, 1. 10, 1. 17. 

 Bttrm. Qaviftl. i. 2. i. l. 3, & t 3. f. 5, 6, 7 (head), 

 dilns amerioanus (aoutus, Cuv.), Huxley, Joum. Proe. 

 Lit - p. 11 . 1 869. 



Molinia amerioana, Gray, Ann, <\- Mag. Nat. Hist. Bar. :>. 

 \. p. 272: Trans. Zool. Soc. L869, \i. p. L50. 



loodflus biscutatua (part), Cuv. Oss. Fbss. x. t. 2. f. 6. 



'. t. 12. 



idile de St-Domingue, Geoff. Ann. du Mus. ii. p. 53, 

 t. 27. t 1. 



Hah. Tropical America. Cuba (W.S. MacLeay); Ja- 

 maica (B.M.); Weal Ecuador, Nicaragua (Fraser, Si- 

 . \\ est coast of America {Belcher) ; St. Domingo 

 (Cuvier); Guatemala (JSalvin). 



The specimens in the British Museum vary in length 

 from 19 to 103 inches ; and the skulls Bhow that they grow 

 t<> a larger size. 



lilus pacificus from Guatemala, 0. lewyanus from 

 I unbia, and C. nuwicanus, Bocourt, Nouv. Arch. Mus. iv. 

 (with two plates of animal and skull), arc probably only 

 varieties of this Bpei ies. 



Var. with two additional small cervical scutella behind 

 the others. 

 Crocodilus americanus. var?, Gray, Cat. Tort. <$,- Croc. B. M. 



p. 60. 

 Crocodilus aoutus, var., A. Dum. Cat. Sept. p. 28 ; Arch, du 



Mus. vi. p. 256. 

 Molinia americana, var., Gran, Ann. 4' Mag. Nat. Eist. x. 



p. 272; Trans. Zool. Soc. 1869, vi. p. 151. 



Hal. West coast of America (Belcher) ; Mexico ( Warwick). 



Cuvier, in his ' Essay,' gives the history of this species 

 under the name of " Le Crocodile a museau effile, ou de 

 Saint-Domingue (Crocodilus acutus, nob.)," Oss. Foss. v. 

 p. 45S. and figures the skull at t. 1. f. 3 & 14, and the nu- 

 chal shield at t. 2. f. 5. 



Professor Briihl described and figured the skeleton of 

 this species in his work. There is the skeleton of a well- 

 uh-.iwtj specimen in the British Museum, and several skulls. 

 The ceutral prominence of the hinder part of the muzzle is 

 sometimes much less developed than in the typical skulls. 



** Fact i 1 ry slender. Dorsal plates nearly uniform. Nasal 

 bones not produced cpeite to the nostrils. Temsacus. 



2. Molinia intermedia. (Orinoco Crocodile.) 

 (Fig. 9.) 



Dorsal plates in sis rows, all slightly and nearly equally 



elevated ; the keels of the two vertebral series rather larger 

 than the others, quadrilateral, rather broader than long; 

 the lateral ones oval, with live or six large plates funning 

 an interrupted line on the sides. 



Crocodilus intermedins, Graves, Ann. Sci. Phys. ii. p. 344. 

 Gray, Syn. p. 59. 



Crocodilus Journei, Bory, Did. if Hist. Nat. v. p. 3. 

 Dam. e\- Bdtr. hlrp. Gin. iii. p. 129. 

 A. Dumeril, Arch, tin Mitscam, X. p. 172, t. 14. f. 3 



(head). 

 Huxley, Proc. Linn. Soc. iv. p. 11. 

 Crocodile de I'Orenoque, Parzudaki, MS. 

 Mecistops Journei (part.), Gray, Cat. Tort. c\ Croc. B. M. 



p. 58 (from Bory). 

 Molinia intermedia, Gray, Ann. £,- Mag. Nat. Hist. ser. 3, 



vol. x. p. 272 ; Trans. Zool. Soc. 1869, vi. p. 151, pi. 32. 



tigs. 4-6. 

 ?? Mecistops bathyrhynchus, Cope, Proc. Acad. Nat. Sci. 



Philadelphia, 1860, xii. p. 550 (skull). 



Hah. America : Orinoco. 



There is a young specimen in spirits in the British Mu- 

 seum, sent by M. Brandt, of Hamburg, as Crocodilus acutus, 

 and an adult skull, 20 inches long, received from Paris as 

 Crocodile de I'Orenoque, and a second very large skull pur- 

 chased in London. 



In my Catalogue of Tortoises and Crocodiles in the 

 British-Museum collection, from all I could then learn, 

 I was induced to believe that the Crocodilus intermedius 

 of Graves was the same as the Crocodilus Schlegelii of 

 Borneo, and I therefore called the Bornean animal Me- 

 cistops Journei. M. Dumeril, in his paper in the ' Archives 

 du Museum,' not seeing the mistake, says that I refer 

 the true Crocodilus intermedius to the genus Mecisio2)S, 

 and suggests that the Crocodilus acutus ought also to 

 belong to it. 



M. Augusta Dumeril, for the purpose of comparing 

 the head of this Crocodile with that of Crocodilus lepto- 

 rhynchus of West Africa, gave a figure of the head and 

 front part of the back of the Crocodile de Journee (Archives 

 du Museum, x. p. 173, t. 14. f. 3) ; but it does not appear 

 whether it is from a specimen, or only an enlarged 

 copy of the figure of M. Bory de St.-Vincent. If the 

 latter, it is so embellished that one is unable to discover 

 its origin. 



Mr. Cope states that I have identified his Mecistops bra- 

 chyrhynchus with the " C. intermedius of Graves ;" with the 

 limited published materials as a basis he has reached a dif- 

 ferent conclusion. (Cope, Proc. Acad. Nat. Sci. Philad. 

 1865, p. 185.) 



