3486, 3515) were taken at Panama, V. S. of Colombia, and one (2802) 

 from Retalhuleu, Guatemala, was presented to the Department. 



SUBORDER. SERPENTES. 



FA»riLY. LEPTOTYPHYLOPID^]. 



22. Siagnodon hnmilia (BAIRD & GIRARD). Mr. George B. 

 Culver collected one (1776) at Mazatlan, Mexico, on the Hopkins' 

 Expedition. 



FAMILY. BOlDAi. 



24. Xiphosoma annulatnm COPE. A specimen (3148) was 

 taken from a bunch of bananas. It had 55 scale rows, three preocu- 

 lars or scales before the eye, three loreals, and the superior labials 

 were 13 on one side and 15 on the other side. Fourteen is said to be 

 the normal number of these scales. 



FAMILY. COLUBRID.E. 



25. Leptodeira personata (COPE). A snake of this species 

 (4068 1 was collected at Retalhuleu, Guatemala. 



26. Oxybelis acuminatus (MAX VON WIED). One of these 

 peculiar reptiles (4080; also came from Retalhuleu, Guatemala, 



27. Drymobius chlorocticus (COPE). A specimen (4071) from 

 Retalhuleu, Guatenula, has seventeen scale rows; the first is smooth 

 and the second feebly keeled. 



28. Drymobius margaritiferus (SCHLEGEL). No. 3489 from 

 Panama, U. S. ot Columbia, has nine superior labials on one side and 

 eight on the other. Temporals 1-2 on both sides. 



No. 4074 from Retalhuleu, Guatemala, has nine superior labials 

 on both sides. Five and six inferior labials are in contact with the 

 anterior genials. 



30. Natrix fasciata (LINNEUS). A small (4031) specimen 

 referable to this species and apparently to the sub-species N.f. sipe- 

 don (B. & G.) is labeled 'Mexico." 



31. Spilotes corals (CUVIER). Four of these snakes (4081, 

 4083 4085) from Retalhuleu, Guatemala, all have seventeen scale rows 

 around the body and twenty-three or twenty-four around the neck. 

 The superior labials of the first are 7-8 and of the others 8-8. Body 

 brown, black, marked, with an oblique stripe on each side of neck. 

 Posterior part of body sutlused veutrally with brownish, not black. 



31. Salvadora grahamiss BAIRD & GIRARD. On the pen- 

 insula of Baja California this species has been secured (4297-4293) at 

 Santa Anita. /^-- — , 



32. Thamaophis insi^narum (COPE). One of these garter 

 snakes (1801) is from "Mexico;" it was taken on July 19th, 1891, by 

 Mr. A. J. Woolman. The catalogue says, "ditch along canal abun- 

 dant." 



33. Thamnophis melanogaster (WIEGMANN). One of this 

 species (4037) is from the City of Mexico. It was presented by the 

 collector, Mr. A. J. Woolman. As the description of this well marked 

 snake may be inaccessible to most or some of my readers I append a 

 short diagnosis. 



First row of scales not keeled -indistinctly keeled in some places. 

 Second row feebly keeled, while all the rest are indistinctly keeled. 

 Scales in nineteen rows. Superior labials eight, orbit bounded below 

 by two — 4th and 5th. Temporals 1-2. Oculars 2-3 and 2-4. Loreals 



