82 Praeger — The Marine Shells 



var. laevis. Equally distributed with the typical form, and not separated from 

 it by the authors quoted above. 



Tectura testudinalis, Mutter. 



On stones at and below low water mark. Newcastle and Bloody Bridge — 

 Thompson {sub Lottia testudinalis). Frequent on both sides of Belfast Lough 

 — Hyndman ; and dead specimens were dredged in Strangford Lough by 

 Dickie, and Mr. S. A. Stewart (Acmcea testudinalis). This shell was named 

 by Sowerby Patella Clealandi in honour of Mr. J. Rose Clealand, of Rathgael 

 House, who procured the first British examples at Bangor, Co. Down ; but 

 as a species it proved to have been previously described and named by Muller, 

 from Danish specimens. On stones near the Twin Islands, Belfast Harbour, 

 of large size — Mr. Swanston. 



Tectura virginea, Mutter. 



" Obtained on the shore of Belfast Bay by Mrs. M'Gee, and found by Mr. 

 Hyndman adhering to oysters in Belfast Market in 1831 " — Thompson {sub 

 Lottia virginea). Hyndman took it very frequently, living at the entrance 

 to Belfast Lough, and off Larne, in from 10 to 25 fathoms ; and from 

 Dickie's dredgings it would appear to live in abundance in Strangford Lough, 

 in 4 to 25 fathoms (sub Acmcea virginea). Dead shells frequent on the 

 Turbot Bank. 



Tectura fulva, Mutter. 



Turbot Bank, rare, dead ; determined by Dr. Dickie — Hyndman, 1858 

 Report {stcb Pilidium fulvum). 



Propilidium ancycloides, Forbes. 



1 ' Obtained by Mr. Hyndman many years ago on oysters from Strangford 

 Lough" — Thompson {sub Patella ancycloides). In a dead state it is rather 

 common on the Turbot Bank. The only locality on our shores where it has 

 been certainly taken alive would appear to be the deep water near the Maiden 

 Rocks, where Hyndman procured living specimens several times, in between 

 70 and 100 fathoms of water. Jeffreys says "on the Antrim Coast in 18-100 

 fathoms (Hyndman and others)," which looks as if some other observer had 

 taken it at a less depth. 



Puncturella XVoachina, Linne. 



" Mouth of Belfast Bay, 27 fathoms, one dead specimen dredged by Mr. 

 Hyndman" — Thompson; his only Irish note of the species. Hyndman 

 subsequently obtained it on several occasions on the Turbot Bank (the same 

 locality), always dead. Jeffreys says of it— "Co. Antrim (Hyndman, 

 Waller, and J.G.J.). The specimens, however, from the last-mentioned 

 locality are probably relics of the glacial epoch, and not recent." It is a 

 species essentially of northern origin, whose most southern station is Scar- 

 borough in Yorkshire, while northward it ranges as far as Spitzbergen and 

 North Greenland. 



