2. TTl'HLOPS. 7 



Helminthopliis emunctus, Cope, Bull. U.S. Nat. Mm. no. 32, 18«7, 

 p. 91. 



Rostral very large, half the width of tlie head, extending beyond 

 the level of the eyes, in contact with the frontal, which is broad ; 

 no prreocular ; two suboculars ; eye distinguishable, under the 

 suture between the pr;efrontnl and the ocular ; four upper labials, 

 first largest, second in contact with the prefrontal. 22 scales 

 round the body. Black, each scale with a reddish-brown border ; 

 head whitish. 



Total length 158 millim. 



Isthmus of Panama. 



2. TYPHLOPS *. 



Tvphlops, part., Schrteid. Hist. Amph. ii. p. 339 (1801) ; 3/«v. Tent. 

 'p. 158 (1820) ; Fitzhu/. N. CV«s.v. liej^t. p. 25 (182G) ; Waffl. Smt. 



Avqih. p. 195 (1830). 

 Tvphlops, Dmn. ^- Bibr. Evp. Gen. vi. p. 279 (1844) ; Gray, Cat. Liz. 

 'p. 132 (1845) ; Jun, Icon. Gen. p. 7 (1864) ; Giinth. Bept. Brit. 



Ind. p. 172 (1864) ; Beters, Sitz. Ges. naturf. Fr. 1881, p. 70 ; 



Boeourt, Miss. So. Alex., Bept. p. 499 (1882); Bouleng. Faun. 



Ind., Bept. p. 235 (1890). 

 Tvphlina, Wayl. I. c. p. 196 ; Giinth. I. c. p. 171 ; Peters, I. c. p. 70. 

 Pilidion, Bi/m. ^- Bibr. vi. p. 257 (1844). 

 Ophthalmidion, Dum. ^- Bibr. I. c. p. 262. 

 Cathetorhinus, Dum. <§• Bibr. I. c. p. 208; Peters, I. c. p. 70. 

 Onychocephalus, Dum. 6f- Bibr. I. c. p. 272 ; Giinth. I. e. p. 177 ; 



Peters, I. c. p. 70. 

 Onychophis, Grai/, I. c. p. 132. 

 T\-phlina]is, Grai/, I. c. p. 134. 

 Anilios {non Oken), Gray, I. c. p. 135. 

 Argyrophis, Gray, I. c. p. 136. 

 31editoria, Gray, I. c. p. 139. 



Diapliorotvphlops, Jan, Elenco, p. 10 (1803) ; Peters, I. c. p. 70. 

 LethtHibia^ Cope, Proc.Ac. Phi/ad. 1868. p. 322; Peters, I. c. p. 70. 

 Gerrhiipilus, Peters, I. c. p. 09. 

 Gryptotyphlops, Peteis, I. o. p. 70. 

 Aspidorhynchus, Peters, I. c. p. 70. 



Prajfrontal single and small ; frontal small ; nasal large, single 

 or divided into two. 



South Europe ; South Asia ; Africa ; Tropical America ; Australia. 



Si/nojjsis of the Sjiecies. 



I. No prteocular ; no subocular ; ocular in contact with the second 

 and third labials. 



Snout rounded ; nostrils inferior ; 22 scales 



round the body 1. lineatus, p. 15. 



* T. V'ihUri, Garni. Scienre Observer, iv. 1883, ji. 48. from Brnzil, f« inssnfll- 

 ciently charaeterized. 



