146 Miscellaneous. 



five fathoms, in soft luud, along with a iiuantity of Viiyi(kiriu and 

 Pennatulo. It proved, on cxarainBtion, to be a young male, seem- 

 ingly half-grown, as the claws had not as yet attained the size cha- 

 racteristic of the adult. The nature of the ground from which the 

 specimen was taken would seem to corroborate the statement of 

 Cranch. as quoted by KoU, " that they live in the hardened mud, 

 and that their habitations, at the extremities of which they live, are 

 open at both ends." The second species above mentioned was taken 

 off the lighthouse situated on the north coast of Mull, on stony 

 ground, at a depth of about fifteen fathoms, and seemed, from its 

 small size, to be also an immature specimen. 



A third species was also obtained, which, though by no means so 

 uncommon as the two preceding, seems worthy of mention. This is 

 the spinous shrimp (Cm m/mi spiauSHs,'&o\l), a specimen of which 

 was taken at the entrance to Loch Sunart, at a depth of twelve or 

 fourteen fathoms, and proved to be an adult of large size. 



No other six^cimens of either of these species were obtained, 

 although the various localities were carefully dredged on several 

 occasions during a month's residence in that quarter ; so that the 

 different species would seem to be by no means abundant in that 

 neighbourhood. 



As previously remarked, the two first-mentioned species do not 

 seem to have been before observed on the Scottish coast, while the 

 latter sec>ms only to have beeu taken in Shetland. I have therefore 

 thought that it might be of interest to mention their occurrence on 

 the west coast, more especially at a time when so much attention is 

 being directed to the elucidation of the laws governing the distribu- 

 tion of different species of marine animals. 



Spatangus meridiondlis, Risso. 



!Mv friend Dr. MiJrch of Copenhagen, who is now at Nice for his 

 health, has just given me some information which may serve to de- 

 cide the question whether the above-named species is the Sjtatanrfus 

 Baschi of Loven or merely the 8. j^urpurens of Miiller. Dr. Morch 

 savs that at my request he has examined Risso's collection, that he 

 found among the unpublished drawings of that author a figure of S. 

 meridional is ver}' like <S'. j7»r/>io-€»s, and that in the collection were 

 several specimens of the latter species with a label on which was 

 written " Mon Spatangus meridionalis est le Sp. puq)ureus, Lam.'' 



J. GwYX Jeffreys. 



Not€ on the Arranrfement of the Pores or Afferent Orljices in 

 Cliona celata, Grant. By M. Liox Vaillaxt. 



In the month of October last I had the opportunity, thanks 

 to the kindness of M. Lemaitre, of Cancale, of witnessing the 

 dredging of the oyster-beds for the annual inspection. This cir- 

 cumstance enabled me to observe in the living state that singular 

 sponge which perforates the shells of certain Moliusca, the Cliona 



