ON THE SHETLAND CRUSTACEA, TUNICATA, ETC. 835 
show evident signs of haying been partially imbedded amongsand. My 
largest specimen contained nearly a pint of sarcode in the interior. This 
sarcode is of deeper colour than usual among the sponges, and when the 
dried Oceanapia is cut open the sarcode will be found lying on that side 
which has been downwards when drying, shrunk into a solid deep brown 
or almost black mass, having somewhat the appearance and consis- 
tency of cobbler’s wax. 
Desmacidon fruticosus (Montagu). ‘Shetland, 1864” (Bowerbank in litt.). 
Peachii, Bow. The type specimen. “Shetland, Mr. C. W. Peach” 
(Bowerbank). 
constrictus, Bow. The type specimen. ‘Shetland, Mr. C. W. Peach” 
: (Bowerbank). 
“/ Raphysus Griffithsic, Bow. “Shetland, Capt. Thomas and Mr. M‘Andrew ” 
/ (Bowerbank). 
Diplodemia vesicula. ‘Shetland, Mr. Barlee ” (Bowerbank). 
Order KERATOSA. 
Spongionella pulchella (Sowerby). ‘A young specimen coating part of a 
small bouldered granite pebble dredged by Mr. Jeffreys off the Outer 
Skerries, Shetland, in May 1864, from 50-80 fathoms depth ” (Bower- 
bank). 
Chalina oculata (Pallas). “Shetland, 1864” (Bowerbank in litt.). I have 
never myself seen this common species of our southern coasts in the 
extreme north. 
gracilenta, Bow. ‘Shetland, 1864” (Bowerbank in litt.). 
Verongia Zetlandica, Bow. Occasional, and widely distributed, but numeri- 
cally scarce on the Outer and Middle Haaf. 
Dysidea fragilis (Montagu). Rare, only two or three specimens observed. 
POSTSCRIPT. 
Since the Report on the Crustacea has been in print I have received the 
- last part of Bate and Westwood’s ‘ British Sessile-Eyed Crustacea,’ which 
contains the appendix to that work. Among the species there described are 
several on which, as being connected with the present Report, it is necessary 
that I should say a few words. 4 
** Opis leptochela, n. sp.” This I find to be the species described by me under 
the name Huonyw chelatus (Brit. Assoc. Report, 1866 (1867), p. 202). 
My specimen differs from that described by B. & W. in having the 
second gnathopods larger and stronger than the first, and the hand fur- 
nished with a strong nail. This difference is perhaps one of sex. The 
species cannot, I think, be placed in the genus Opis. 
«* Ampelisca levigata.” Most unquestionably not the true A. levigata, but 
the A. tenwcornis of Lilljeborg and of this Report. The characters given 
by B. & W. are the exact reverse of those which belong to the true 
A. levigata. 
“ Haploops tubicola.” B. & W. give “ Shetland ” on my authority, but I have 
neyer taken the species there. For ‘“‘ Shetland” read Hebrides*. 
“ Lepidepecreum.” A new genus is characterized under this name to receive 
* Jn the ‘Zoological Record’ for 1866, Mr. Bate, in referring to my Hebridean Report 
(Brit. Assoc. Report, 1866, p. 193), in every instance, by some /apsws, misquotes the ha- 
bitat as “Shetland.” ; 
