THE GASTROPODA 



British. Campaspe, Bergh. FAMILY 6. BORNELLIDAE, Fischer. The 

 dorsum garnished on either side with papillae at the bases of which are 



Fio. 160. 



A, Eolis papillosa, dorsal view: a, posterior cephalic tentacle (rhinophore) ; b, anterior 

 cephalic tentacle ; c, the dorsal papillae. B, Tethys leporitm, dorsal view ; a, the cephalic hood ; 

 b, cephalic tentacle ; e, neck ; d, genital pore ; e, anus ; /, large dorsal papillae ; {/, smaller 

 dorsal papillae ; h, margin of the foot. C, Doris tuber<mlata, seen from the pedal surface ; b, 

 margin of the head ; /, sole of the foot; m, mouth ; sp, the mantle. D, K, dorsal and lateral 

 view of Elysia viridis ; 6, tentacle ; cp, lateral outgrowths. (From Lankester, after Hancock, 

 Cuvier, and Allmann.) 



Fio. 161. 



Phyllirhoe hucephalum, right-side view ; 

 the internal organs are shown as seen by 

 transmitted light, a, mouth ; b, radular 

 sue ; c, oesophagus ; (/, intestine ; d, 

 stomach ; /, the genital pore ; f, anus ; 

 <i, tl', 0", </"', the four lobes of the liver ; 

 h, the heart (auricle and ventricle) ; I, the 

 renal sac ; I', the ciliated reno-perirardial 

 duct ; 7d, the external opening of the 

 renal sac ; n, the cerebral ganglion ; o, 

 the cephalic tentacles ; w, the parasitic 

 medusa Alnestru, usually found attached 

 in this position ; /, the ovo-testes. (From 

 Laukester, after Keferstein.) 



ramified appendages. Genus Bornella, Gray. FAMILY 7. LOMANOTIDAE, 

 Bergh. Body flattened ; the two dorsal borders prominent and foliaceous 

 Genus Lomanotus, Verany ; British. 



