8. LEPIDOSTEKNON. 469 



also the upper temporal ; a small postocular or temporal ; a single, 

 very large, upper labial ; mental very small, followed by a single 

 rather small chin-shield; a single, very large, lower labial. Three 

 hundred and seventy-seven annuli on the body and fourteen on the 

 tail ; pectoral shields large, elongate, three pairs on the median line, 

 and two or three lateral pairs, largest. Four anal segments. 

 Brownish white, with very small darker spots. 



Length to vent 336 millim. ; tail 14 millim. 



Brazil. 



16. Lepidosternon scutigerum. 



Cephalopeltis scutigera, Gray^ Cat. Tort. p. 73, 

 and Sh. Rept. ii. p. 40. 

 AmphLsbsena scutigera, Ilempr. Verh. Ges. Naturf. Fr. i. 1829, 



p. 129. 

 Cephalopeltis cuvieri, Miill. Zeitschr. f. Physiol, iv. 1831, p. 257, 



pi. xxii. fig. 5. 



hemprichii, Wiegm. Arch. f. Nat. 1836, p. 1-57, pi. iii. fig. 2. 



Lepidosternon scutigerum, Dum. Sf Bibr. v. p. 509; Strauch, Mel. 



Biol. Ac. St. Petersh. xi. p. 456. 

 Cephalopeltis scutigera, Girard^ U.S. Explor. Exped., Herp. p. 217. 



Prasmaxillary tooth 1, maxiUaries 3 — 3, mandibulars 5 — 5. 

 Snout prominent, with subangular horizontal edge ; two shields 

 cover the upper surface of the head, viz. the large rostral, the lateral 

 angles of which extend to the ocular, and the enormous frontal, which 

 forms an obtuse angle anteriorly ; a pair of very small transverse 

 occipitals ; eye slightly distinct through the ocular ; no supra- 

 ocular ; three upper labials, first large, second and third small and 

 under the ocular ; mental coalescent with the single elongate chin- 

 shield ; a single, very large, lower labial. Three hundred annuli 

 on the body and sixteen on the tail ; an annulus on the middle of the 

 body contains forty-eight or fifty segments, twenty-two dorsal and 

 twenty-six or twenty-eight ventral ; pectoral shields large, two pairs 

 on the median line and three shields on each side, on a transverse 

 line, largest. Anal segments six, median pair largest. Vertebral, 

 lateral, and ventral lines well marked. Yellowish, the dorsal 

 segments with a brown spot. 



millim. 



Length to vent 410 



TaU 25 



Diameter of body 13 



Brazil. 



.1 ivT -o- T • i Lords of the Admiralty rP.l. 



a. Ad. Near Eio Janeiro. J j^^. Cunningham [C] ^ ^ ^ 



