42 CINOSTERNID^. 



8. Ciuosterniim inte^'um. 



Kinostcrnum integrum, Lecmte, Proc. Ac. Phihid. T854, p. 183; 



lincnurt, Joiirn. tie Zuul. v. p. 393 (187G) ; Gtatth. Biol. C.-Am., 



liept. p. 2(5 (1885). 

 Thvrostornum integrum, Affossiz, Contr. N. II. U. S. i. p. 429 



(1857). 

 Swanka Integra, Gray, Stippl. Cat. Sh. Pept. i. p. 09 (1870). 

 Cinosti'riium rostelhini, liucourt, I. c. p. .">'.tl. 



Lirtipes (no7i Wayi), Gi'nith. I. c. p. 15, pis. xii.-xv.* 



jjensvlvanicum (non Gnicl.), Dmj'es, La Naturaleza (2) i. p. — , 



pi. xi. iigs- 1-^ (1888). 



Head rather largo ; jaws strong ; beak feebly hooked. Digits 

 extensively webbed. Carapace with a feeble keel in the male and 

 young, keelless in the adult female. Plastron entirely closing the 

 box, feebly nicked posteriorly, and without bridge in the adult ; 

 lobes well movable, anterior longer than the immovable portion ; 

 gular shield not half the length of the front plastral lobe ; suture 

 between the pectoral shields much shorter than that between the 

 humcrals ; axillary and inguinal shields narrowly in contact, or 

 narrowly separated. Tail of male ending in a nail-like horny 

 tubercle. Carapace brown, with small blackish dots in the male, 

 with radiating lines in the halfgrown specimen ; the sutures between 

 the shields blackish ; plastron yellowish or brown ; head dark brown 

 above, spotted or marbled with yellowish ; throatand jaws yellowish, 

 spotted with dark brown. 



Length of shell IG centim. 



Mexico. 



a-h, c. c?, $, & hgr., spir. Mazatlan. Mr. A. Forrer [CI. 



d-e. 5 «& yg., spir. Tres Marias Islands. Mr. A. Forrer [C. 



/. Yg., spir. Presidio. Mr. A. Forrer [C." . 



9. Cinosternuin leucostomum. 



Cinosternum leucostomum, A. Dmn. Cat. Moth. Pept. p. 17 (1851), 

 ayid Arch. Mus. vi. p. 239, pi. xvii. (1855) ; Graij, Cat. Sh. 

 Pept. i. p. 46 (1855); Cope, Proc. Ac. Philad. 1865, p. 189; Bo- 

 court, Miss. Sc. Mex., Pcjit. p. 25 (1870); Sclafer, Proc. Zool.Soc. 

 1871, p. 745; Bocoiirt, Joitrn. de Zool. v. p. 394 (1876). 



scorpioides, part., Gray, I. c. p. 44. 



Swanka scorpioides, part., Gray, Supjd. Cat. Sh. Pept. i. p. 67 (1870). 



maculata, part., Gray, I. c. p. 68. 



leucostoma, Gray, I. c. p. 69. 



Cinosternum leucostomum, part., Gilnth. Biol. C.-Am., Pept. p. 17, 

 pi. xvii. (1885). 



■ brevigidare, Giinfh. I. c. p. 17, pi. xviii. f. A. 



cobanum, Giinfh. I.e. p. 18, pi. xviii. f. B. 



brcvigulare, Cope, Proc. Am. Philus. Soc. xxii. p. 389 (1885). 



postinguinale, Cope, Bull. U.S. Nat. Mus. no. 32, p. 23 (1887). 



* It Bhoulfl be mentioned that Dr. Giintlier, who obtained the type of 

 Wagler's C. hirtipes from tlie Munich Museum on loan, still adheres to his 

 opinion that the specimens from IVfazatlan and Tres Marias Islands should be 

 referred to that species rather than to C. integrum. 



