136 
Philippine Journal of Science 
1920 
four large shields between carapace and plastron; a small in- 
guinal shield and a group of eight axillary shields, four of which 
touch pectorals and humerals; a small round shield behind anal 
shields. 
Color in life . — Above olive drab to gray, rather lighter about 
suture; sides and underside of neck whitish; plastron whitish. 
Measurements of Caretta olivacea (Eschscholtz) , 
mm. 
Length of carapace 
340 
Width of carapace 
325 
Height of carapace 
110 
Length of foreleg 
260 
Width of foreleg * 
70 
Length of hind leg 
180 
Width of hind leg 
70 
Length of plastron 
275 
Width of plastron 
280 
Length of tail, from anus 
15 
Length of head, to end of parietals 
90 
Depth of head 
55 
Variation . — This species is known to be subject to a great 
amount of variation. Thus the usual number of costals is five ; 
but in the Manila specimen figured by Eschscholtz there appear 
to be seven on one side and six on the other, with seven ver- 
tebrals; there are thirteen marginals on each side. I am un- 
certain whether the nuchal is divided. There are several char- 
acters about Eschscholtz’s figure that differ markedly from my 
specimen, but these may be due to poor drawing. The squama- 
tion of the neck, the position of the nostrils, the shape of the 
occipital region, and the squamation of the legs — all appear to 
differ greatly. 
Remarks . — This species and an agamid lizard appear to be 
the first recorded Philippine reptiles. The species is not rare 
and is taken frequently in Manila Bay. 
Genus CHELONIA Latreille 
Chelonia Brongniakt, Bull. Soc. Philom. Paris 2 (1800) 89 (nomen 
nudum)-, Latreille, Hist. Nat. Kept. 1 (1802) 22; Wagler, Syst. 
Amph. (1830), 132, part; Gray, Syn. Rept. (1831) 51; Dumeril 
and Bibron, Erp. Gen. 2 (1835) 530; Cat. Zool. (1844) 54; Cat. 
Shield Rept. 1 (1855) 74; Girard, U. S. Expl. Exped., Herp. (1858) 
452; Gunther, Rept. Brit. India (1864) 52; Gray, Suppl. Cat. 
Shield Rept. (1870) 119; Stejnbger, Bull. U. S. Nat. Mus. 58 
(1907) 509. 
Chelone Brongniart, Mem. Sav. Etrang. 1 (1806) 610; Strauch, 
