RECORDS OF RARE INVERTEBRATA. 271 



described as a new species under the name S. agglomerata. We dredged 

 some specimens o£ the last from the original locality, but I have no doubt 

 they are simply a colour variety of S. catenata. 



(5) Professor Dendy, who has kindly looked over the sponges of the 

 ' Runa ' collection, notes the following as the more interesting forms, all 

 from the Shiant East Bank and neighbouring parts of the Minch : — 

 Tethya lyncurium, Ficidina jicus, Suherites carnosus, Dictyocylindriis stuposus, 

 PhahelUa ventilahrum, Ph. (^Isodietyd) infundibidiformis, and a series of 

 Quasillina (Polymastia) hrevis and Polymastia mammillaris, which Prof. 

 Dendy says " seems to indicate that Bowerbank was right in assigning the 

 species, Q. hrevis, to the genus Polymastia ; but the question wants working 

 out with specially preserved material." 



Amongst the other, commoner, sponges obtained were many specimens of 

 the large white Esperella lingua, and every specimen examined had embedded 

 deeply in its interior some examples of the eggs or embryos of the cuttle- 

 fish, Rossia macrosoma. I had found these in the same position under the same 

 circumstances the previous summer, and, now again in 1913, 1 found some- 

 times quite young eggs and sometimes far advanced embryos, with the eyes 

 and the arms and other parts of the cuttle-fish distinctly visible on removing 

 the opaque egg-shell. This year, however, on opening some of these eggs, 

 I found no cuttle-fish embryo, but the whole of the interior of what hsid 

 evidently been the covering of the cuttle-fish egg filled up with sponge-tissue 

 like that outside. The only explanation I can suggest is that some of the 

 eggs or embryos die, or are unable to break out through the sponge to the 

 exterior, and that in these cases the neighbouring tissue grows into the 

 capsule and replaces the normal contents. 



(6) Mr. A. 0. Walker, who was with us on the ' Huna^ for a few days in 

 the earlier part of the cruise collecting Amphipods, and who has kindly 

 examined all the higher Crustacea obtained, reports as follows : — " The total 

 number of species of Malacostraca taken is 108, made up as follows : — 

 Decapoda 23, Cumacea 2, Euphausiacea 2, Isopoda 5, Amphipoda 76. 



" Of these, the following do not appear in (knon A. M. Norman's list of 

 Crustacea collected in the Shetland Seas in 1861-7 (Report, British 

 Association, 1868) : — NepTirops iiorvegicus (Linn.), Plulocheras seulptus 

 (Bell), Eudorella emarginata (Kr.), Campylaspis glabra, G. 0. Sars, Coni- 

 lera cylindracea (Mont.), Lysiavassa ceratina, A. 0. Walker, Tryphosa 

 Soringii, Boeck, Socarnes erytlirophtlialmus , Robertson, Hippomedon denti- 

 culatus (Bate), Metaplwxus fultoni (Scott), Neopleustes asshnilis (Gr. 0. Sars), 

 Maera temdmana (Bate), Gammarus dueleni, LiUj., Jassa piisilla (G. 0. 

 Sars), and Corophium honellii, M. Edw.'" 



A specimen oi' Munida bamffica, dredged in the Minch, showed on one side 

 the swollen carapace indicative of a Bopyrid parasite. Mr. T. R. R. Stebbing 

 has kindly examined the specimen for me, and finds that the cavity contains 



