3. CROCODILUS. 287 
10. Crocodilus rhombifer. 
Crocodilus rhombifer, Cuv. Ann. Mus. x. p. 51 (1807), and Oss. Foss. 
v. pt. 2, pl. iii. figs. 1-4 (1824); Tiedem., Opp., § Lib. Nat. Amph. 
p. 75, pl. x. (1817); Wiegm. Herp. Mex. p. 22 (1834); Dum. § 
Bibr. iii, p. 97 (1886) ; Coct. in R. de la Sagra, Hist. Cuba, Rept. 
p- 55, pl. iv. (1843); Gray, Cat. Tort. §c. p. 60 (1844); Blamnv. 
Ostéogr. Rept. (1864) ; Strauch, Syn. Crocod. pp. 41 & 88 (1866) ; 
Bocourt, Miss. Sc. Mex., Rept. p. 35, pl. ix. fig. 4 (1870). 
Palinia rhombifer, part., Gray, Ann. § Mag. N. H. (3) x. p. 270 
(1862), and Cat. Sh. Rept. 1, p. 18 (1872). 
18 or 19 upper teeth on each side. Snout not more than once 
and a half as long as broad at the base; a more or less marked obtuse 
oblique ridge in front of each eye, forming with the inner borders of 
the orbits a rhomb with the anterior and posterior angles cut off; 
mandibular symphysis extending to the level cf the fourth or fifth 
tooth ; preemaxillo-maxillary suture, on the palate, nearly straight, 
transverse ; nasal bones separating the premaxillaries above. Six 
or eight large nuchals on two transverse series, and two pairs of 
smaller ones on a transverse series behind the occiput. Dorsal 
shield well separated from the nuchal, formed of four or six longi- 
tudinal and 16 transverse series; sides with large keeled scutes. 
Scales on limbs strongly keeled. Fingers webbed at the base ; outer 
toes half-webbed. Cnemial crest feebly developed. Olive above, 
spotted with black. 
Total length 1 metre 60 centim. 
Cuba; Mexico ? 
a. Ad., stfid. Cuba. " MM. R. dela Sagra[C.]. Paris 
Museum [. }. 
p 
b. Yg., spir. 
11. Crocodilus moreletii. 
Crocodilus moreletii, 4. Dum, Cat. Méth. Rept. p. 28 (1851), and 
Arch, Mus. vi. p. 255, pl. xx. (1852) ; Strauch, Syn. Crocod. p. 42 
(1866) ; Bocourt, Miss. Sc. Mex., Rept. p. 37, pl. ix. tig. 2 (1870). 
Palinia ? moreletii, Gray, Ann. § Mag. N. H., (8) x. p. 271 (1862), 
and Cat. Sh. Rept. i. p. 14 (1872). 
Alligator lacordairei, P. de Borre, Bull. Ac, Belg. (2) xxviii. p. 110, 
pl. — (1869). 
Appears to be very closely allied to C. rhombifer, from which it 
differs in the scales of the flanks and upper surface of limbs being 
flat and smooth. 
Guatemala and Honduras. 
The following species, established upon a single specimen of 
unknown origin, remains doubtful :— 
