5G TRANSACTIONS, NATURAL HISTORY SOCIETY OF GLASGOW. 



proposed by Mr. Stanley W. Kemp, B.A., of the Irish Fishery 

 Board, Dublin.* 



Notes on the Species. 



GENUS PHILOCHERAS,t Stebbing, 1902. 

 Philocheras trispinosus (Hailstone). — I first came across this 

 species in July, 1904, while dredging in Karnes Bay, Millport, in 

 about four fathoms, and in this locality I have subsequently 

 found it. Two females with ova measured from the extremity of 

 the rostrum to the end of the telson about 20 and 30 mm. 

 respectively. They could be quite readily distinguished from 

 among the adult specimens of Crangon vulgaris (Lin.) by the 

 coloration alone. The carapace was of a pale yellow colour 

 with a sprinkling of light reddish dots, the abdominal segments 

 being greyish brown dotted with light brown spots, while the 

 sides of the pleura were marked with dark brown. I also found 

 several specimens in Lamlash Bay, in the vicinity of King's 

 Cross, in about eight fathoms. Most of the specimens from both 

 localities did not exceed 10 mm. in length, and came up in the 

 tow-net usually in company with C. vulgaris. At this stage of 

 growth they bear a close resemblance to, and may be readily 

 passed over for, the latter species of approximately the same 

 size, but, by a slight comparison, I found that P. trispinosus may 



"" Ann. <b Mag. Nat. Hist., Ser. 7, Vol. XVII., p. 298. 

 , /Second pair of trunk-legs simple ... ... 1. Sabinea. 



I Second pair of trunk-legs chelate, 2. 



r Second pair of trunk-legs about equal in length 

 2 -! to first 2. Crangon. 



I Second pair of trunk-legs shorter than first, 3. 



(Second pair of trunk-legs searcelj' one-third 

 the length of first ... ... ... ... 3. Pontophilus 

 Second pair of trunk-legs about three-quarters 

 the length of first, 4. 

 (Inferior apices of gills turned forwards, small 

 exopod at base of first pair of trunk-legs 4. .^geon. 

 Inferior apices of gills turned backwards, no 

 exopod at base of first pair of trunk-legs 5. Philocheras. 

 t Nom. nov. vice Gheraphilus. "Mariue Investigations in South Africa," 

 Vol. I., p. 47. 



