716 



REPORT OF NATIONAL MUSEUM, 1902, 



1833. Chdonia virgata Wagler, Descr. Icon. Amph., Pt. 3, pi. xxix (not of 



Schweiwger, 1814). 

 1858. Thaldssodieb/i^ co)1lcata Girard, Herpet. U. S. Expl. Exp., ji. 431, pi. xxix, 



figs. 1-4 (Madeira). 



The Loggerhead turtle is readily distinguished from the other 

 marine turtles by having live pairs of costal shields, while the other 

 two species with horny covering have only four pairs. The additional 

 pair is situated' in front of the others, in contact with the first verte- 

 bral. No Porto Rican specimen being at hand, a .voting one from 

 Florida is figured herewith, so as to help in identifying specimens. 



This species is included in the Porto Rican fauna on the strength of 

 Dr. StahPs testimony. It is probably not rare, but being of no com- 

 mercial value it attracts no attention. 



Figs. 1S8-190.—CARETTA CARETTA, young. Florida. Natural size. 18S, shell from below; 189, head 

 from side; 190, umlerside of head. No. 14823, U.S.N.M. 



Genus CHELONIA" Latreille. 



1800. Chelonia Brokgniart, Bull. Soc. Philoni. Paris, II, p. 89 [nomen nudum). 



1802. Chelonia Latreille, Hist. Nat. Kept., 1, p. 22 (type C. mydas). 



1806. Chelone Brongniart, Mem. Sav. Etrang., I, p. 610 (emended). 



1814. Cheloniafi Rafinesque, Specchio d. Sfi. (Palermo), II, no. 9, 1 sett. 



1814, p. 66 (emended). 

 1838. Ml/das Cocteau in Sagra's Hist. Fis. Pol. Nat. Cuba, IV, Kept., p. 22 



(type Ch. viridis) (not of Fabricius 1799). 

 1843. Mydasea Gerv-\is, Diet. d'Hist. Nat., Ill, p. 457 (same type). 

 1848. Megemys GiSTEL, Naturg. Thierr., p. viii (substitute for Chelonia), 



CHELONIA MYDAS'' (Linnaeus). 



1758. Tcstudo mydas J^ikhmus, Syst. Nat., 10th ed., I, p. 197 (Ascension Island, 

 etc.); 12th ed., I, 1766, p. 350. — Chelone vu Brongniart, Mem. Sav. 

 Strang., I, 1806, p. 611.— Boulenger, Cat. Chel. Brit. Mus., 1889, p. 

 180, (part: Belize, West Indies). — Chelonia m. Schweigger, Arch. 



«;(;£Agjj'?/, turtle. 



''Mydas, said to be a corruption for hiv<;, hivSog, a turtle (from /ivSaa},a,\n wet?) 



