76 PROCEEDINGS OP THE ACADEMY OP 



and along the adjacent edges of the scales of the second and third rows, 

 indistinct on the sides, but distinct on the tail. Superior labials and throat 

 yellowish ; belly grayish, largely varied with black, which forms an irregular 

 longitudinal band. 



This is a more robust serpent than the well-known brachyorrhos, and 

 has a shorter and thicker tail. While this has 21 urosteges, our specimen of 

 the other has 32. The latter has the scales in 17 rows (15 Gimther), and 

 they are more elongate and imbricate ; it has not the supplementary geneial 

 plate, and above all, the peculiar tuberculation of the ischiadic region. This 

 exists elsewhere only as far as we know in the Trachischium r u g o s u m 

 Gthr., of the Himmelayas, also a Calamarian, and is donbtless an assistance 

 to the animals in burrowing in the earth, and among unyielding objects. 



Another difference between this serpent and the brachyorrhos is seen 

 in the less elongated form of the head of the former, the rather shorter labials, 

 and much shorter geneials. The eye, too, is a trifle longer, and more anterior. 

 The coloration is quite different ; we only note here, the absence of the large 

 neck spots in trachyprocta. 

 One sp. Ceylon. Mr. Cuming. 



Haldea Baird & Girard. Type H. striatula. 

 Catal. Rept. Smiths. Inst. Serp. p. 122, 1853. Conocephalus Dumeril. 

 Prodrome de la Classification des Reptiles Ophidiens, pp. 43 et 46, 1852, and 

 Gunther Cat. Brit. Mus. p. 17. Not of Thunberg, 1812, (Orthoptera.) 



68. H. striatula B. % D. Conocephalus striatulus D. & B., Erp. Gen. 

 et Gthr. 1. c. 



Two sp. S. Carolina. Dr. Edwd. Hallowell. 



One sp. N. Carolina. ? 



One sp. Richmond, Va. Smithsonian Inst. 



One sp. N. America. ? 



Tropidoclonion nobis. Type T. lineatum. 



Microps Hallowell Proc. Acad. Nat. Sci. viii. 1856. Not of Megerle, 1823, 

 (Coleoptera Oedemeritse.) 



This genus is allied to I sch nogna th us D. # B. S tr e ptophor us 

 and Elapoidis agree with it in having divided urosteges, carinate scales 

 and two internasals, but differ thus, Streptophorus, two post-, no preocular ; 

 Elapoidis, one post-, two preoculars ; Tropidoclonion, two post-, one preocular. 



69. T. lineatum nob. Microps lineatus Hallow. 1. c. 



Two sp. Kansas. Dr. Hammond. 



Streptophorus D. & B. Type S. S eb ae. 

 Erp. Gen. vii. 514. 



70. S. Sebe D. $ B. Elapoides fasciatus Hallow. Journ. Acad. iii. 35, 

 pi. 4. 



One sp. Honduras. Dr. Woodhouse. 



Two sp. ? Gard. of Plants. 



71. S. atratus nobis. Coluber atratus Hallow. Proc. Acad. Nat. Sci. ii. 

 p. 245, 1845. Streptophorus Drozii D. & B. vii. 518, 1854, Gunther 1. c. 



We are glad to be able to restore the name given by Dr. Hallowell to this 

 species many years before that of the Erpetologie Generale. The specimen 

 described by him is rather paler than the others justifying the expression, 

 " lead colored." The " six " superior labials is an anomaly, other specimens 

 having seven. None of the specimens have the dark color on the chin and 

 throat mentioned by Dumeril but this is not probably an important character, 

 as Gunther does not allude to it. 



Four sp. Venezuela, within 200 miles of Caraccas. Dr. Ashmead. 



[Feb. 



