MARINE ZOOLOGY 



APORRHAID.* 



135. Aporrhais pes-pelecani, Linnaeus.* 

 Hastings. 



BUCCINIDJE 



136. Buccinum undatum, Linnaeus. 

 The whelk ; common. Hastings. 

 The left-handed monstrosity, the keeled 



monstrosity and the acuminate form * 

 also occur at Hastings, but are rare. 



137. Donovania minima, Montague.* 

 Hastings. 



138. Neptunea antiqua, Linnaeus.* 



This species is recorded as ' Fusus anti- 

 quits,' Linnasus, and may be received with a 

 little caution, since the animal is often 

 imported into the town with the common 

 whelk, as food, the shells being thrown 

 upon the beach. Hastings. 



139. Tritonofusus graci/is (Costa) 



Shell with the spire not quite in a straight 

 line ; somewhat rare. Hastings. 



M.VRICIDJE 



140. Ocinebra erinacea, Linnaeus. 

 Common. Hastings. 



141. Ocinebra corallina, Scacchi.t 

 Brighton. 



142. Trophon clathratus, Linnaeus.t 

 (?) British species. Brighton. 



143. Purpura lapillus, Linnaeus. 



This species occurs in great variety of 

 colouring, mainly white, yellow, orange or 

 brown. Very common. Hastings. 



NASSID-ffi 



144. Nassa reticulata, Linnaeus. 



Both this species and the following one 

 are frequenters of the lobster ' pots.' Very 

 common. Hastings. 



145. Nassa incrassata (Strom) 

 Very common. Hastings. 



146. Nassa pygm<ea, Lamarck.* 

 Rare. Hastings. 



PLEUROTOMID.-E 



147. Bela turncula, Montague. 

 Common in the trawl, dead shells only 



having been taken. Hastings. 



Bela turricula var. rosea, M. Sars. 

 Rare. Hastings. 



148. Bela rufa, Montague.* 

 Somewhat rare. Hastings. 



149. Mangilia costata (Donovan) 

 Very rare. Hastings. 



150. Mangilia rugulosa (Philippi) 

 Rare. Hastings. 



151. Mangilia nebula (Montague) t 

 Brighton. 



152. Clatburella linear is, Montague.* 

 Very rare. Hastings. 



153. Clathurella reticu/ata, Renier.* 

 Very rare. Hastings. 



OPISTHOBRANCHIA 

 TECTIBRANCHIA 



ACTJEONID/E 



/ 154. Actieon tornatilis, Linnaeus. 

 Rare. Hastings. 



ScAPHANDRIDj"E 



1 155. Schaphander lignarius, Linnaeus. 



Rare. Hastings. 



156. Bullinella cylindracea (Pennant) t 

 Brighton. 



157. Philine aperta, Linnaeus. 



Rather local ; plentiful in Rye Bay. 

 Hastings. 



CAVOLINIID^: 



i 158. CavoKnia trispinosa, Rang. 

 Very rare". Hastings. 



NUDIBRANCHIA 



159. Hermtea dendritica, 



Species a little over inch in length, 

 the general colour varying from seaweed 

 green to orange. There is only one 

 pair of tentacles, and they are char- 

 acteristic of the genus, being folded 

 lengthwise. The papillae are rather long 

 and overhang the sides and middle of the 

 back, giving to the animal a shaggy appear- 

 ance. Further characteristic of the species 

 is the dentritic veining, of a deeper colour, 

 which runs down each side of the back 

 supplying offshoots to the tentacles and 

 papillae, the veins being more or less reticu- 

 lated. The animal has a habit of con- 

 tracting the head and tail, and in that 

 condition much resembles a young specimen 

 of the anemone Actinia mesembryanthemum, 

 the papillae representing the tentacles of the 

 anemone. This species is decidedly rare. 

 It occurred at Hastings during a rather hot 

 summer, upon rocks at low spring tides, 

 but has not been observed since. It is very 

 difficult to detect. Hastings. 



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