94 CANARY ISLANDS. 



MoJhtsca and Shells. The next classes that merit our 

 attention, are the mollusca and conchitcx^a of these islands. 

 They are peculiarly rich in shells, many species of which 

 are distincruished by their beautiful forms and splendid 

 colorings, and are highly valuable in consequence of their 

 comparatively rare occurrence in cabinets. But unfor- 

 tunately, the heavy surf which constantly thunders round 

 tiiese rocky shores, appears to prevent them from being 

 gathered in a perfect state. 



A few of the more remarkable animals of these classes 

 are as follows : — 



In the order cephalopoda, v.-e meet v/ith the cuttle-fish, 

 properly so called, (Sepia officinalis) the Spirula peronii, 

 and the Argonauta argo. 



In the order pulmona, we observe the common field-slug, 

 (Limox agrestis) and a number of helices, among which, 

 we notice the Helix lactea, H. bidentalis, H. diaphana, H. 

 plicatula, H. maritima, and the H. aspersa; we also observe 

 the Lima squamosa, CarocoUa planaria, C. hispidula, and 

 the Pupa maculosa. 



On several kinds of fuci about these shores, we notice 

 the Scyllaea pelagica, and a species of doris. 



Among the other orders, we meet with the Bullaea 

 aperta, Bulla ampulla, B. physis, Natica canrena, Tro- 

 chus(?), Scalaria communis, Cyclostoma flavula, Jan- 

 thina communis, Conus (?), Cyprgea tigris, C. helvola, C. 

 lurida, C. moneta, C. spurca, Marginella glabella, Mitra 

 melaniana, Purpura rudolphi, Columbella rustica, Rici- 

 nula morus, Triton nodiferum, (var.) Triton (?), Doli- 

 um perdix, (var.) Fusus (?), Haliotis tuberculata, Patella 

 vulgata, Spondylus gaedaropus. Pinna rudis, (var.) My- 

 tilus elongaius, Cardita calyculata, Venerupis irus, Car- 

 dium costatum, Lucina pecten, Venus verrucosa, Mac- 

 tra (?), Balanus (?), Serpula contortuplicata. 



Crustacea and Inseds. Although these two classes 

 of animals are extremely interesting on these isl^inds, I 

 did not devote much attention to them for the want of 

 time, consequently my readers must be contented with the 

 following brief detail : — 



Among the Crustacea, we notice a species of lobster, 

 (Astacus. Fab.) and several species of land and other 

 crabs peculiar to intertropical countries. 



