466 AMPHTSB^NID^. 



brownish white, the dorsal and hxteral segments each with a 

 roundish dark brown spot. 



Length to vent 505 millim. ; tail 35 millim. 



Erazil. 



9. Lepidosternon wnchereri. 



Lepidosternon octostegiim (non A. Dvm.), Steind. Novara, Rejd., 



p. 53. 

 wuchereri, Peteis, Mon. Bed. Ac. 1879, p. 276, pi, — . fig. 2 ; 



Strauch, Mel. Biol. Ac. St. Petersh. xi. p. 447. 



Snout turned upwards ; rostral large, in contact with the anterior 

 angle of the frontal ; prsefrontals trapezoid, broader than long, 

 separated by the frontal ; latter hexagonal, a little longer than 

 broad, followed by a pair of smaller parietals which are broader 

 than long ; no occipitals ; a supraocular, a little smaller than the 

 ocular ; two temporals, upper largest ; two upper labials, first twice 

 as long as second. Mental very small, quadrangular, followed by a 

 large chin-shield ; a pair of small lateral chin-shields on each side ; 

 two lower labials, first much larger than second. Two hundred 

 and seventy-eight annuli on the body and seventeen on the tail ; 

 nine or ten large, elongate, narrow pectoral shields on a transverse 

 line ; four anal segments. 



Length to vent 340 millim. ; tail 20 millim. 



Brazil. 



10. Lepidosternon gnentheri. 



Lepidosternon giintheri, Strauch, Mel. Biol. Ac. St. Petersb. xi. 

 p. 449. 



Closely allied to the preceding, but diiferiug in the presence of a 

 pair of large occipitals and the different pectoral scutellation, which 

 consists of numerous, mostly small, shields, of which the median pair 

 alone is much elongate. Frontal octagonal, forming an obtuse angle 

 anteriorly and posteriorly ; occipitals twice as broad as long ; three 

 upper labials, the first largest, the third very small. Two hundred 

 and thirty-one annuli on the body and thirteen on the tail ; an 

 annulus of the body contains thirty-two dorsal and twenty-four 

 ventral segments. Six anal segments. 



Length to vent 312 millim. ; tail 18 millim. 



Habitat unknown. 



11. Lepidosternon boettgeri. (Plate XXIV. fig. 5.) 



Praemaxillary teeth 3 ; maxillaries 4 — 4 ; mandibulars 5 — 5. 

 Snout more depressed than in L. microcephaliim, with sharper rostral 

 edge ; rostral large, widely separated from the ocular ; frontal much 

 longer than broad, narrowed, and in contact with the rostral ante- 

 riorlj^ separating the prsefrontals ; latter a little longer than broad 

 a pair of parietals, longer than broad ; a pair of occipitals, smaller 



