126 OPHIOMORPHA. 



Length about thirty times its greatest diameter : an- 

 nuli 130 odd, extending the whole iength of the body, but 

 (every other one not forming a complete circle ?); muz- 

 zle large and rounded ; tongue with plicas and two large, 

 oval, narial valvules; posterior part of the body cylin- 

 drical with rounded end*, color blackish, belly marbled 

 with white; ;, teeth, first row in each jaw about twenty, 

 second row from ten to a dozen below, and sixteen above, 

 all the teeth conical, acute, and turned backwards ; scales 

 large, quadrilateral with rounded angles, and imbri- 

 cated. 



i - ivfecilia rostf ata, Cuvier. 





-5- — * 



=i- 



SHAR|£KpSED CECILIA. 



Length twenty to twenty-one times its greatest diam- 

 eter; annuli 125, forihing complete circles ; eyes and 

 tongue as in C. lubricoidea; muzzle harrow, with end 

 obtuse or slightly pointed; posterior part of the body cy- 

 lindrical, with extremity rounded; color brownish olive 

 throughout ; scales oval and smaller than in C. tentacu- 

 lata ; narial fossae very small. 



Habitat South America and the Isles Seychelles. 

 The occurrence of this animal in regions thus separated 

 and possessing such distinct faunas, is certainly remark- 

 able and well worthy of note. It opens up an interest- 

 ing question in regard to geographical distribution, and 

 furnishes an excellent opportunity to theorize on how 

 they came there. 



