98 Praeger — The Marine Shells 



single dead specimen in 12-15 fathoms off the entrance to Strangford Lough. 



Aporrhais pes-pelecani, Linne. 



A well-known and common species, locally called "leg-of-mutton shell." 

 It lives in about 10 to 25 fathoms, but is sometimes taken at both less and 

 greater depths. 

 [Cerithium metula, Lovin. 



In dredged sand from the Turbot Bank— Hyndman, 1859 Eeport. 

 Erroneously recorded from the same vicinity in the 1857 Eeport ; Cerithiopsis 

 pulchella was the species intended. It is a northern form, and its only 

 British station is the Shetland fishing-banks, where it lives in 45-96 fathoms 

 (Jeffreys) ; the Turbot Bank specimens are manifestly fossil.] 

 Cerithium reticulatum, Da Costa. 



Very common, living between tide -marks and to a few fathoms depth, 

 everywhere. In a dead state it is common on the Turbot Bank. 

 Cerithium perversum, Linne. 



"In shell sand, mouth of Belfast Bay, Mr. Hyndman" — Thompson (sub 

 Triphoris adversus). Not uncommon in Turbot Bank sand — Hyndman; 

 very rare, in 12-15 fathoms, off the entrance to Strangford Lough — Dickie 

 (sub C. adversum) ; in all instances dead. Specimens labelled "Bundoran" 

 are in the Belfast Museum Collection. 



ORDER SIPHONOBRANCHIATA. 



Cerithiopsis tubercularis, Montagu. 



' ' Sandy beach at Magilligan ; and in stomach of Scaup duck shot in 

 Belfast Bay" — Thompson (sub Cerithium tubercular e). Hyndman several 

 times dredged dead shells on the Turbot Bank. 

 Cerithiopsis pulchella, Jeffreys. 



Found by Mr. Waller in Turbot Bank sand— Hyndman. It is a rare 

 species. 

 [Cerithiopsis costulata, Holler. 



Another of the Turbot Bank fossils ; it was dredged there by "Waller and 

 Hyndman (sub Skenea costulata and Cerithium niveum) and specimens from 

 thence are in the Belfast Museum. It inhabits the northern seas, and Shet- 

 land appears to be its most southern station.] 

 Purpura lapillus, Linne. 



Very common, on rocks and stones, between tide-marks. Locally called 

 " white wilk," or " dog wilk." Dead shells occur on the Turbot Bank. 

 Succinum undatum, Linne. 



The common whelk, or "buckie," as it is locally called, is abundant 



