166 MM. A Kol 'SIS. 



Genus SOLAROPSIS Beck, 1837. 



Solaropsis BECK, Index Moll. p. 27 (for heliaca, moricandi, brazi- 

 liensis, pellisserpentis}. Martens, Die Hel., p. 164 (type H. pellis- 

 serpentis Ch.) ; Ostas. Landsch. p. 7 (jaw). PILSBRY, Man. Conch. 

 v, p. 177. Solarium SFJX, Test. Brazil, p 23. Helicella SWAINS. 

 Malacol., p. 333 (1840). Psadara MILLER, Malak. Bl. xxv, p. 162, 

 1878, (for boetzkesi, selenostoma, iris). Ophiospila ANCEY, Con- 

 chol. Exch., i, p. 64, 1887 (Jcuhni, andicola, etc.) 



Shell umbilicate, rather depressed, with convex or flat spire, con- 

 vex below, the periphery rounded or angular. Decorated with a 

 jieculiar pattern of lunate brown spots and streak* in bands on a liyht 

 ground. Surface granulate, hirsute or plicate-striate. Last whorl 

 not deflexed in front. Aperture oblique, lunate; lip expanded or 

 reflexed, its ends distant. Type S. pellisserpentis. (See pi. 46, fig. 

 20, S. serpens ; fig. 21, S. braziliana). 



Animal long and slender ; jaw smooth, without ribs ; anatomy 

 otherwise unknown. 



Distribution, southern Brazil and Peru to Columbia and Guyana ; 

 one species S. tiloriensis, in Costa Rica. They are forest snails, liv- 

 ing under stones and bark, etc. 



The name Ophidermis Agassiz (Ophiodermis Herrm.), said to 

 have been proposed in Charpentier's Catalogue of Swiss Mollusks, 

 1837, but not mentioned therein, has found its way into the synon- 

 ymy of this genus, through a guess of Herrmannsen's based on its 

 suggestive etymology. It was never published except as a nude name, 

 for the snake skin can hardly be said to cover its nakedness. It is 

 not now worth the expense of clothing; especially since it really 

 pertains to something of the nature of Cydostoma (see Agassi/, 

 Nomencl. Zool., Moll., p. 62). 



S. pellisserpentis Chemn., v, 178. S. napensis Crosse, v, 188. 



constrictor Hupt'. S. rosarium Pfr., v, 188. 



S. serpens Marty n., v, 178. S. kuhni Pfr., v, 189. 



pellisserpentis Hupr e.t L S. andicola Pfr., v, 189. 



colubrina Perry. S. quadrivittata Hid., v, 190. 



S. pellisboaB Hupe, v, 180. S. diplogonia Dohrn., v, 190. 



boa Hupo. S. nubecnlata Desh., v, 191. 



S. anguicula Hupr, v, 180. S. catenifera Pfr., v, 191. 



S. vipera Pfr., v, 181. S. catenulata Anc., viii, 261. 



S. monolacca Pfr., v, 182. S. marmatensis Pfr., v, 191. 



