628 11. LEPTOTYPHLOPIDZ 
Brit. Mus., Vol. I, 1893, p. 59; Cope, Report U. S. Nat. Mus. for 
1898, 1900, p. 716. 
Rena Batrp & Girarp, Cat. N. Amer. Rept., Pt. I, Serpents, 1853, 
p- 142 (type, dulcis). 
The body is cylindrical, covered with smooth, cycloid 
scales. The rostral plate is very large, and is recurved on 
both the upper and lower surfaces of the protruding snout, 
The nasal plate is very large; behind it is the large ocular, 
followed in turn by wide parietal and occipital plates. A 
row of small scales runs along the top of the head behind 
the rostral plate. This central row of scales is separated 
from the ocular plate of each side by a small supraocular 
plate. 
One species of this genus has been found in Arizona. 
136. Leptotyphlops dulcis (Baird & Girard) 
EasTERN WorM-SNAKE 
Rena dulcis Barrpv & Girarp, Cat. N. Amer. Rept., Pt. I, Serpents» 
1853, p. 142 (type locality, between San Pedro and Camanche 
Springs, Tex.). 
Stenostoma dulce Pevers, Monatsb. Akad. Wiss. Berlin, 1857, p. 402; 
Cops, Proc. Acad. Nat. Sci. Phila., 1861, p. 305; Jan, Arch. Zool. 
Anat. Phys., 1861, p. 189; Jan, Iconogr. Génér. Ophid., 2e livr., 
pls. 5, 6, fig. 5, text 1864, p. 36; Jan, Elenco Syst. degli Ofidi, 1864, 
p- 15; Core, Bull. U. S. Nat. Mus., No. 1, 1875, p. 44; Cope, Bull. 
U.S. Nat. Mus., No. 17, 1880, p. 20; Cope, Bull. U. S. Nat. Mus., 
No. 32, 1887, p. 63; Cope, Proc. Acad. Nat. Sci. Phila., 1883, 
p> 1. 
Stenostoma rubellum Garman, Mem. Mus. Compr. Zool., Cambr., Vol. 
VIII, 1883, p. 130 (type locality, Uvalde, Texas). 
Leptotyphlops dulcis StE}NEGER, Proc. U. S. Nat. Mus., 1891, p. 501; 
CocKErELL, American Naturalist, Vol, XXX, April, 1896, p. 326; 
Van DensurcH & Stevin, Proc. Cal. Acad. Sci., Ser. 4, Vol. 3, 
1913, p. 409; STEJNEGER & Barzour, Check List N. Amer. Amph. 
Rept., 1917, p. 72. 
Glauconia dulcis Cope, Proc. U. S. Nat. Mus., Vol. XIV, 1892, p. 590; 
Boutencer, Cat. Snakes, Vol. I, 1893, p. 65; Core, Report U. S. 
Nat. Mus., for 1898, 1900, p. 717, fig. 143; Brown, Proc. Acad. 
