Notes. 



ZOOLOGY. 



113 



Fauna of Mulroy Bay, Donegal.— On August 14th last, Mr. R. 

 D. Darbishire and Rev. A. H. Delap carried out some dredgings in 

 Mulroy Bay, North Donegal. I am indebted to the kindness of these 

 gentlemen for the notes, list of mollusca, and slide of foraminifera, from 

 which the present note is compiled. Particulars : — Four dredgings 

 taken with an iS-inch dredge in north loop of Mulroy — (i.)W. ofCroghan 

 Island, 21-25 fathoms ; (2.) N. by W. of Croghan Island, 18-19 £ ; (3-) S. 

 and K. of Doherty's rock, 17-18 f". ; E. of Lamb Island, 23-27 f. The result 

 in all four scrapes was very similar — a fine, thick, black mud, not 

 putrescent, with a little gritty sand and a few sharp quartz pebbles ; 

 only a few shells, live and dead. One or two scrapes were also taken at 

 the mouth of Moross Channel, in a few fathoms depth ; the dredge 

 brought up abundance of living Lima hians from 2 f., on a sandy bottom, 

 and from 5 or 6 f. in its nests among Laminaria ; also a small feather- 

 star in the stalked stage. The results were, as Mr. Darbishire remarks, 

 very disappointing, and the fauna remarkable for its poverty; nevertheless, 

 there are one or two interesting species, as I shall point out ; and so 

 little marine work has been done in Donegal that any acquisition to the 

 knowledge of the fauna is desirable. 



Moi^ivUSCA (determined by R. Standen) : — Lima hians (Gm.) — alive and 

 plentiful ; Mytilus edulis, L. (young) ; Montacuta bidentata (Mont.) — valves ; 

 Kellia suborbicularis (Mont.) — valves ; Axinus flexuosus (Mont.) — alive and 

 plentiful ; Mr. Darbishire writes that it came up alive in every haul ; 

 Cardium edule, L. (young) ; Venus ovata, Penn. — dead ; Tellina tenuis, Da C. 

 — valves; Corbula gibba, Olivi — a few alive, small; Panopea plicata (Mont.) 

 — valves; Saxicava rugosa (L-) — valves; Cyclostrema nitens (PhiL.) ; Rissoa 

 inconspicua, Aid. ; R. striata, (Ad.) ; Turritella terebra (L-) ; Odostomia scalaris 

 (Phil.); 0. acicula (Phil.); 0. spiralis (Mont.); 0. interstincta (Mont.) ; 0. 

 insculpta (Mont.) ; O. pallida (Mont.); 0. rufa, Phil.; 0. turrita, Han.; O. 

 ■unidentala (Mont.) ; Cerithium reticulatum (Da C.) ; Utriculus truncatulus 

 (Brug.) ; Cylichna umbilicata (Mont.). All the above univalves were dead. 

 One or two species in the above list call for remark. Lima hians has been 

 already recorded as plentiful at Moross by Mr. Hart {Zoologist, 1892) ; and 

 this second note of its abundance there is interesting, as, excepting a 

 single specimen dredged many years ago by the Ordnance collectors off 

 Belfast Lough (Thompson), and another in the same locality by Grooms- 

 port fisherman (Proc. Belfast Nat. Hist. Socy., 1859) there is no other 

 record of this pretty shell from Ulster. Montacuta bidentata is a rare shell 

 in Ulster. Axinus flexuosus, though widely distributed, has apparently 

 not been previously taken alive on our northern coasts. Panopea plicata 

 — I know of no previous Irish record for this as a recent shell ; it occurs 

 in the estuarine clays of Belfast (Stewart) and Magheramorne, near 

 Larne (Bell). Odostomia rufa (type) has not been previously recorded from 

 the northern coasts, though its var.fulvocincta is not uncommon; I have 

 to thank Mr. J. T. Marshall for kindly confirming the determination of 

 this shell. Several of the other Odostomice, Cyclostrema nitens, and Utriculus 

 truncatulus, have only once or twice been previously recorded from the 

 northern province, and additional stations are welcome. 



Foraminifera (determined by Joseph Wright, F.G.S.): — Biloculina 

 depressa, d'Orb ; Miliolina seminulum, Linn. ; M. sclerotica, Kar. ; 

 Haplophragmium canariense, d'Orb ; Verneuilina polysttopha, Rss. ; Virgulina 

 Schreibersii, Cz. ; Bulimina pupoides, d'Orb; B. marginata, d'Orb; Bolivina 

 lavigata, Will. ; B. punctata, d'Orb ; Lagena Icevis, Mont. ; L. lineata, Will. ; Z. 

 gtacillima, Seg. ; Z. sulcata, W. and J. ; L. Williamsoni, Alcock ; L. 

 semistriata, Will. ; L. squamosa, Mont. ; Z. hexagona, Will. ; Z. laevigata, Rss. ; 

 Z. lucida, Will ; Nodosaria scalaris, Batsch. ; Cristallaria crepidula, F. and M. ; 

 Uvigerina angulosa, Will. ; Discorbina rosacea, d'Orb ; Rotalia beccarii, Linn. ; 

 Nonionina depressula, W. and J. ; Polystomella crispa, Linu. ; P. striato* 

 punctata, F. and M. 



