372 BULLETIN 17 7, UNITED STATES NATIONAL MUSEUM 

 Genus DARLINGTONIA Cochran 



1935. Darlingtonia Cochran. Proc. Boston Soc. Nat. Hist., vol. 40, No. 6, 

 p. 374 (type, D. haetiana). 



Diagnosis. — Hypapophyses absent in the posterior dorsal vertebrae, 

 the lower surfaces of which have a low keel; anterior and middle 

 maxillary teeth 12 or 13 in number, gradually increasing in size 

 posteriorly, with a gap followed by one enlarged fanglike tooth without 

 grooves; mandibular teeth equal. Head small, scarcely distinct from 

 neck; eye rather large, with round pupil; no loreal; postnasal very 

 large, taking the position of a loreal, the nostril entering it from the 

 upper posterior border of the anterior nasal; the first pair of infralabials 

 and the squarely truncate anterior geneials meeting in a point behind 

 the triangular mental; posterior geneials longer than the anterior ones, 

 only partially in contact with each other on the midline. Body 

 cylindrical; scales smooth, without pits, in 19 rows; ventrals rounded; 

 anal single. 



DARUNGTONIA HAETIANA Cochran 



Plate 12, A 



1935. Darlingtonia haetiana Cochran, Proc. Boston Soc. Nat. Hist., vol. 40, 

 No. 6, p. 375.— Barbotjr, Bull. Mus. Comp. Zool., vol. 82, No. 2, p. 162, 1937. 



Original description. — "Type. — M.C.Z. 38,252, an adult female from 

 Roche Croix, northeastern foothiUs, Massif de la Hotte, Haiti, about 

 5,000 feet altitude, collected in October, 1934, by P. J. Darlington. 



"Description oj the type. — Rostral twice as broad as deep, narrowly 

 visible from above; snout truncate, scarcely projecting; internasals as 

 long as broad, slightly shorter than the prefrontals; internasal suture 

 three-fourths as long as prefrontal suture; frontal once and two- thirds 

 as long as broad, much broader than the supraoculars, longer than its 

 distance from the end of the snout, shorter than the parietals; nostril 

 large, placed in the upper posterior border of the anterior nasal; 

 postnasal large, broadly in contact with the preocular and bordering 

 the prefrontals widely and the internasals narrowly; no loreal; eye 

 rather large, pupil round; one prae- and two post-oculars; no sub- 

 oculars; one large anterior temporal, on the right two small scales in 

 front of it, on the left a small scale above it; two subequal posterior 

 temporals; 7 supralabials, the tliird and fourth entering the eye, the 

 fifth highest, the sixth widest; three lower labials on each side in con'- 

 tact with the anterior chinshields which are squarely truncate in front; 

 posterior chinshields in contact with tliird and fourth infralabials, 

 longer than the anterior, nearly separated from each other by a third 

 pair of chinshields which are like the second but smaller; two additional 

 series of paired scales before the first gastrostege more lilve the sur- 

 rounding scales; mental shield triangular, its posterior angle meeting 

 the inner ends of the first infralabials and the anterior chinshields; 

 8 infralabials; 19 rows of smooth scales around the body; no apical pits ; 



