1030 MR. G. A. BOULENGER ON 



REPTILIA. 



C H E L O N I A. 



1. CiNOSTERNUM SPURRELLI, Sp. 11, (Pls. CY. & CVI.) 



J aws strong ; beak strongly hooked. Carapace smooth and 

 without keels, flattened on the vertebral region, profile descending 

 very abruptly behind ; deep grooves between the shields ; 

 posterior border serrated. Plastron smaller than the opening of 

 the shell, not emarginate posteriorly ; lobes well movable, front 

 one longer than the fixed portion and slightly shorter than the 

 hind one ; gular shield not half the length of the front lobe ; 

 suture between the pectoral shields much shorter than that be- 

 tween the humerals ; axillary and inguinal shields elongate and in 

 contact with each other. A patch of small horny keeled tubercles 

 on the back of the leg, opposed to one on the thigh. Tail ending 

 in a claw-like scute. Carapace blackish bi'own, plastron yellow 

 with blackish blotches ; head, neck, and limbs blackish above, 

 whitish below ; a broad oblique yellowish band on each side of 

 the head, from behind the eye to the neck, passing above the 

 tympanum ; jaws yellowish horn-colour. 



This very distinct species is represented by a single male 

 specimen, the shell of which measures 115 mm. The curious 

 shape of the first vertebral shield, depicted on PL CY., is probably 

 an individual peculiarity and has therefore not been alluded to in 

 the description. 



The position of C. spurrelli in the system is in group II. A of 

 my Synopsis (Cat. Cheloii. p. 38), which group, up to the present, 

 was unrepresented south of Mexico. 



2. KiCORIA NASUTA Blgr. 



Described in 1902 from specimens obtained at Bulun and on 

 the Rio Durango, N.W. Ecuador. 



The specimen in the present collection is quite young. Shell- 

 length 70 mm. The digits are fully webbed. 



E M Y D O S A U R I A. 



3. Caiman sclbrops Schn. 



Lacertilia. 



4. Anolis fasciatus Blgr. 



Only known from Guayaquil and N.W. Ecuador {A. elegans 

 Blgr.) " Green above, with darker green markings, yellow on 

 belly; crown of head and neck with faint orange markings. 

 Gular appendage white with six broad orange bands." 



5. Anolis macuhventris Blgr. 



First described from N.W. Ecuadoi'. 

 " Gular appendage crimson." 



