41 6 Proceedings of the Royal Irish Academy. 



Macromysis flexuosa ( Miiller). — A very common species, enormously abundant 

 in the bays and harbours of the area, usually found among Laminaria and 

 other seaweeds and in rock-pools. 



M. inermis (Eathke). — Inishgowla Harbour, Clew Bay, 1-4 fms. Carrigeen- 

 more, Blacksod Bay, in tow-net through weeds close to shore, abundant- 

 Off Portlea, Clare Island, in tow-net, 5-6 fms., abundant. Ballynakill 

 Harbour, on two occasions. Bofin Harbour, common. 



A moderately abundant species in the area, but never found along 

 the shores or in rock-pools like M. flexuosa. It usually occurs in 

 about 5 fms. of water. 



Schistomysis ornata (G. 0. Sars). — Entrance to Blacksod Bay, 7 fms., abundant. 

 Feorinyeeo Bay, Blacksod Bay, 5 fms., one specimen. 



S. arenosa (G. 0. Sars). — Off the white strand, Ship Sound, Bofin Harbour, 

 3 fms., in sand, very abundant. Carrigeenmore, Blacksod Bay, in tow- 

 net through weeds, close to shore. 



Neomysis integer (Leach). — Lough Learn, Mullet, abundant. Lough Learn is a 

 brackish-water lough, cut off from the sea, and only entered by the tide 

 at spring-tides. New to the district. 



STOMATOPODA. 



In 1905 I recorded the fact that Stomatopod larvae, belonging to two 

 distinct genera of adult Stomatopoda, occurred regularly in tow-nettings taken 

 in the late autumn off Inishbofin and Ballynakill Harbour. Since the publica- 

 tion of that note further specimens have come to hand ; and I now wish to 

 correct an error in the identification of one of the types of larvae. I referred 

 the two kinds of larvae to the larval genera Alima and Gonerichthus, the 

 young forms of Squilla and Gonodactylus respectively. The latter larvae in 

 reality belongs to the genus Lysiosquilla. I was able to correct my earlier 

 determination by the discovery of a single specimen, 16 mm. in length, in 

 the first adult stage, in which the raptorial claw bears nine teeth, including 

 the large terminal one. It suffices for the present to include the genera 

 Squilla and Lysiosquilla in the fauna of the Clare Island marine area. No 

 adult specimens have yet been found ; but the larvae in all stages of develop- 

 ment occur free-swimming in the shallow seas of the district every year in 

 the late summer and early autumn. 



