SUPPLEMENT TO DAWSON'S " MOLLUSCA OF ABERDEEN " 101 



PECTEN OPERCULARIS (Z.), var. LINEATA, Da C. Mr. Kelly obtained 

 a specimen of this variety in 1892 on board a trawl-boat at 

 Aberdeen. He was informed that the boat had been fishing 

 from 20 to 30 miles off. 



PECTEN TIGRINUS, Mull., var. COSTATA, Jeff. Very common in 

 stomachs of flounders along with the type. 



MYTILUS EDULIS, Z., var. PELLUCIDA, Penn. On piles at Don 

 mouth, and on stones at the north breakwater, Aberdeen. 



MONTACUTA BIDENTATA (Mont.}, var. TR1ANGULARIS, Marsh 



"Aberdeen," Mr. J. T. Marshall in "Journal of Conchology " 

 for October 1893. 



AXINUS CROULINENSIS (Jeff.}. Recorded as having been found off 

 Lossiemouth during the observations made on board the 

 "Garland" in 1889. ("Fishery Board Report," 1889, part 3, 



p. 210.) 



ISOCARDIA COR (Z.). Mr. Thomas Scott, F.L.S., obtained in the 

 Moray Firth " two large specimens one living and one dead " 

 ("Fishery Board Report for 1889," part 3, p. 332). This 

 species has also on various occasions been brought into Aberdeen 

 by trawlers fishing in the Moray Firth, and given to Mr. Sim, 

 A.L.S., to myself, and to other local collectors. I have been 

 informed by the fishermen that they were generally found in 

 35 fathoms of water, about 40 miles off Buckie. 



CYPRINA ISLANDICA (Z.), var. CRASSIOR, Jeff. Specimens referable 

 to this variety are often found on Aberdeen beach after heavy 

 gales from the north-east. 



ASTARTE SULCATA, Da C., var. SCOTICA (M. and J?.), has been 

 brought in by trawl-boats from the Buchan deeps. Var. FUSCA, 

 Poll. Frequent from deep water. Var. MULTICOSTATA, Jeff. 

 A number dredged about 80 miles off Aberdeen. 



ASTARTE COMPRESSA (Mont.}, var. STRIATA (Leach). Mr. J. T. 

 Marshall informs me that all the specimens of this species he 

 has seen from this district are of this variety. 



VENUS GALLINA, Z., var. LAMINOSA, Mont. Six perfect specimens 

 and a number of detached valves were dredged by me in 1893, 

 80 miles off the Aberdeenshire coast. Var. ALBA, Somer. 

 Found occasionally along with type on Aberdeen beach. 



TELLINA BALTHICA, Z., var. MINOR, Jeff., and var. NIVEA, Jeff. 

 Both varieties common on Aberdeen beach after storms. 

 Another form of T. balthica small, thin, orbicular, and 

 inflated near the umbones occurs at Aberdeen, amongst the 

 mud which was dredged from the channel of the Dee during 

 the time the harbour was being made. Although obtained 



