Crustacea. 5715 



whelk pots and on the long lines, but an inhabitant of much deeper 

 water than H. araneus. This species grows to a very large size here, 

 but, being an inhabitant of deep water, large specimens are not fre- 

 quently met with. I find this species dies sooner in a tank than the 

 last. The larger specimens appear not to change their carapace 

 annually, zoophytes, barnacles, Anomias, Serpulae, and even oysters 

 of large size, being found attached not merely to the exterior of the 

 Carapace, legs, &c, but even internally on the surface of the prrela- 

 bial space. The bifid extremity of the rostrum frequently has its 

 cornua crossed. This was first pointed out to me by W. S. Mac- 

 nally, Esq. I have found it since of frequent occurrence, and gene- 

 rally accompanied, and probably caused by, the growth of a sponge. 

 Local name "Tinkers." In ova in February; exuviates in January. 



Strawberry Crab (Eurynome aspera, Leach). Rare. Two speci- 

 mens were obtained from twenty-five fathoms water off Bray Head. 

 Many years ago abundantly obtained on the shore near Malahide. 

 Specimens in the Museum of the Dublin Natural History Society, 

 thence obtained, were presented by Dr. Lloyd to the collection of 

 that Society. 



Great Crab (Cancer pagurus, Linn.) Excessively common in 

 suitable localities. Essentially littoral in its habits, and seldom taken 

 in the dredge. One dredged between the valves of a dead oyster- 

 shell, in about twelve fathoms water, in Dalkey Sound. Local name 

 " The Crab." This is the only species eaten here. In ova in April. 



Hairy Crab (Pilumnus hirte/lus, Linn, sp.) Rare. Some years 

 ago this crab was washed ashore in numbers near Portmarnock. 

 I obtained a small specimen under a stone in a rock-pool at Sandy- 

 cove, near Kingstown, 1857, and have met with remains of the animal 

 near the Pigeon House Wall. It does not occur here in anything 

 like the abundance in which it is met with at Galvvay. 



Pirimela denticulata, Mont. sp. The only Dublin specimen of 

 this crab I know of was dredged by me in Dalkey Sound in twelve 

 fathoms water, May 2, 1857 ; it was a small female, and in ova ; the 

 zoeas resemble very closely those of Cancer pagurus. In ova in 

 May. This species lives well in confinement, and is extremely active 

 in all its movements. 



Common Shore Crab (Carcinus Manas, Penn. sp.) Excessively 

 common. Essentially a littoral species. The young, especially from 

 brackish water, vary much in colour, from a dead brickdust-white to 

 almost purple; the ordinary colour of the species is, however, green : 

 one adult specimen, three inches in diameter, had the fingers and 



