CHELONIA TENUIS. 459 



C, maculosa. Its anterior margin, immediately above the neck, is 

 but very slightly concave ; the same is the case immediately above the 

 anterior limbs. 



In the young, the dorsal shields are proportionally shorter, com- 

 pared to their width. The general outline of the carapax does not 

 differ from that of the adult. 



The ground color is yellowish-olive, shaded with brown ; but this 

 tint appears distinctly on the neck, breast, shoulder, and tail only. 

 The plates which protect the head and the limbs are of a dark black- 

 ish-brown, with the very edge alone yellowish. The carapax is densely 

 mottled, clouded, or marmorated, with black and brown, interspersed 

 with whitish or yellowish specks, the remnants of the ground color. 

 The snout and the portion of the jaws not covered by the plates are 

 reddish-brown, a tint which may likewise be traced along the periphery 

 of the carapax, the ciliary and supraciliary edges being yellowish. 



Log. — Feejee Islands. — " This species, together with the following 

 {Caretta rostrata) , seems to be most frequent about the extensive reefs 

 to the leeward of the principal islands. We saw them principally in 

 pairs, at Muthuata. As an article of food, both are used indiscrimi- 

 nately."— (Note-book Expl. Exped.) 



Plate XXXI, fig. 1, represents Cheloniaformosa, in profile, reduced, 

 Fig. 2, is an outline of the carapax, seen from above. 

 Fig. 3, an upper view of the head ; and, 

 Fig. 4, a side-view of the same region. 



5. Chelonia tenuis, Grd. 



(Plate XXXI, fig. 8.) 



Char. spec. — Carapace suhcordiformi, elongato, per transversum tho- 

 racis quam pelvis angustiori. Tergo depresso. Scutis vertehralihus 

 suhaequalibas, suhrhomhoideis, aeqiie latis ac hngis, aut latlorihus 

 quam limgioribus. Scutis marginalihus septem et mginti. Fulva et 

 olivacea, fusco et nigro maculata. 



Spec. Char. — Carapax subcordiform, elongated, narrower across the 

 pectoral region than across the pelvis. Back depressed. Vertebral 



