ANDREWS — ON ORTHAGORISCTJS OBLONGUS. 61 



had, although cautiously, put forward, that the air "bladder was 

 of importance to the certain habits of fish. Eels, which were 

 ground-feeding fish, had an air bladder, and he recollected that there 

 were two species of the Scomleridce, or mackerel tribe, that were so 

 perfect a resemblance of each other, as one drop of water to another, 

 yet one possessed an air bladder, while it was wanting in the other. 

 With regard to the sensitiveness of the lips or mouths of fishes — this 

 was peculiarly shown in the shark tribe. He considered that there was 

 a great distinction between the characteristics of the imperfectly deve- 

 loped teeth of the Mola and of the Oblongus. In the former their strong 

 formation evinced a capability of grinding and crashing the hardest 

 Mollusca, while in the Oblongus the structure seemed fitted only to feed 

 on the Annelides, Solothurice, and other soft-bodied creatures. 



WEDNESDAY, JUNE 1, 1870. 

 William Andrews, Esq., Vice-President, in the Chair. 



The minutes of the previous Meeting having been read, confirmed, 

 and signed, 



The Chairman gave a short but most interesting paper on some rare 

 Crustacea, obtained b)* dredging in from forty to sixty fathoms off the 

 south-west coast of Ireland. 



He exhibited a specimen of the long-legged swimming crab (Por- 

 tunus longipes), dredged in upwards of fifty fathoms off the entrance of 

 Dingle Bay. It is one of the Mediterranean species, and Mr. Andrews 

 was not aware of its occurrence having been before noticed on the coast 

 of Ireland. The specimen exhibited was not full grown, but possessed 

 all the characteristics described by Bell and by Spence Bate. Its colour 

 was of a deeper brown when first captured. The carapace exhibited 

 the transverse ridge, terminating at each side by rather a long and 

 sharp tooth. 



Beautiful specimens of Pagurida were taken in fifty fathoms, 

 particularly Pagvrus ulidianus and Paguris Icevis. The latter were 

 particularly fine, remarkable for their clear yellow colour, and having 

 a distinct red mark extending along the hand and bifurcating at the 

 fingers. A specimen laid before the Society had the ova fully de- 

 veloped ; they had been found in that state early in August. 



Mr. Andrews then gave an account of many other forms of the 

 marine invertebrata procured by him while dredging in deep water in 

 Dingle Bay, and off the Islands, amongst which he enumerated the 

 following, viz. : — 



Stenorynchus tenuirostris, 



Inachus dorsettensis, 



Pisa tetraodon, 



Gibbsii, 



Hyas araneus, 



Coarctatus, 



