ADDENDA TO REPORT ON SHETLAND CRUSTACEA, ETC. 345 



hue usque cognita," (Efvers. af k. Vet.-Akad. Forh. 1866, p. 312. The 

 specimens of " Amphiura elegans " recorded in the foregoing Report from 

 " 40 fathoms, St. Magnus Bay," belong to A. tenuispina, Ljungman. 

 That author at first described this form as a species, but in his more 

 recent memoir considers it to be a deep-water form of A. elegans. On 

 the other hand I at first regarded it in the latter light, but now think it 

 may be a distinct species. For its characters I must refer the reader to 

 Ljungman's paper. I find specimens of this Ophiuridan among the 

 Echinodennata procured in the ' Lightning ' expedition, and sent to me 

 for examination by Messrs. Carpenter and Thomson ; and dredged 

 lat. 59 40' N., long. 7 20' W., on a bottom of fine mud in 530 

 fathoms and a temperature of 47 Fahr. 



Pocillipora interstincta, Fleming, Brit. Anim. p. 511 ; Johnston's British 

 Zoophytes, p. 194. This coral, found by Dr. Hibbert in the Shetland sea, 

 has been an obscure species of which we have been able to make out 

 nothing hitherto. I have recently, however, seen specimens of a highly 

 interesting coral procured by Messrs. Carpenter and Thomson in the 

 ' Lightning ' expedition oif Cape Wrath, lat. 59 5' N"., long. 7 29' W., 

 in 189 fathoms, and also a fragment sent to me to examine by Mr. 

 D. Robertson, who procured it from Faroe, which exactly correspond 

 with Flemings brief description ; and as the specimens which I have seen 

 are from the north and from the south of Shetland, there is every like- 

 lihood of its having been found at the intermediate locality. A de- 

 scription of the species will be given by me in the Report of the Inver- 

 tebrata procured in the * Lightning' expedition. 



