12 TRANSACTIONS, NATURAL HISTORY SOCIETY OF GLASGOW. 



Capidus hungaricus (L.). — " Rather worn shells are thrown 

 ashore by the tide at Magilligan " (Praeger). Abundant on 

 the Port-Stewart sands, though never attaining to the size 

 of the true "Torbay bonnet." 



Trochus helicinus, Fabr. — A single, minute specimen. 

 *T. magus, L. — "Not uncommon on the coasts of Derry and 

 Antrim" (Praeger). I obtained only two much- worn 

 specimens. 



T. tumidus (Mont.). — Only four examples obtained. 



T. ciyierarius, L. — Abundant. 

 *T. umbilicatus (Mont.). — Rather scarce. 



T. zizyphinuSy L. — Common. 



T. zizyphinits, var. lyonsii, Flem. — With the type, but scarce. 

 The only Clyde record is my discovery of it while on the 

 " Garland," inside Sanda Island, in 25 fathoms. 



Phasianella pullus (L.). — Six of these beautiful little shells 

 were got in the gravel bank near Rock House. Brown 

 omits it from the Clyde mollusca. Smith had recorded it 

 from Portpatrick, and Forbes had vaguely mentioned the 

 " Clyde, 15 fathoms." Mr. Somerville has a specimen which 

 he obtained in Arran. I have taken it between Sanda and 

 the Mull of Cantyre in 19 fathoms. 



Lacuna crassior (Mont.). — I was fortunate in securing five 

 examples of this species, which is a total stranger to the 

 Clyde. The only West of Scotland records are : — Oban 

 Bay, where Mr. Darbishire obtained three, and Messrs. 

 Chaster and Heathcote one specimen, but all dead ; and 

 Loch Spelve, one dead, 7-15 fathoms (Coulson). 



L. divaricata (Fabr.).— A solitary example of this abundant 

 shell. 



L. puttolus (Turt.). — Only one specimen obtained. The only 

 records from the Clyde are somewhat contradictory. Mr. 

 Alfred Brown says that it is very scarce, and to be found 

 at Farland Point, Cumbrae. Canon Norman records it as 

 plentiful on the Allans, in Millport Bay ! I have records for 

 its occurrence in Loch Fyne and in the Outer Hebrides. 

 *Zittorina obtusata (L.). — Abundant everywhere. 

 *L. neritoides (L.). — This is the species which covers the lower 

 parts of the basaltic columns of the Giant's Causeway. The 



