364 Proceedings of the Royal Physical Society. 



obtained within the intestines of Ascidians found frequently 

 adhering to the inside of the valves of dead mussels and 

 other shells, dredged in various parts of the estuary. These 

 specimens were mistakenly ascribed to Enterocola, van 

 Beneden, but they more nearly resemble Aplostoma brevicauda, 

 Canu. They differ, however, in some respects from that 

 species, as shown by the description and drawings. I have 

 therefore named the species as above. 



Family Lamippeida 

 Genus (116) Lamippe, Bruzelius, 1859. 



266. Lamippe proteus, Claparede. 



1867. Lamippe proteus, Claparede, Ann. des Sci. Nat., ser. 5, vol. 

 viii. p. 23, pi. v. 



1895. Alcyonicolafusiformis, T. and A. Scott, Ann. and Mag. Nat, 



Hist. (6), vol. xvi. p. 357, pi. xvi. figs. 10-14; pi. xvii. 

 fig. 13. 



1896. Lamippe (?) proteus, T. Scott, Fourteenth F. B. Rept., pt. iii. 



p. 164. 



Hab. — On Alcyonium digitatum, dredged in various parts 

 of the estuary; frequent. This curious species appears to 

 live in the cells of the polyps. If an Alcyonium be broken 

 into pieces, and the fragments washed in a bottle containing 

 methylated spirit, numbers of the Lamippe will generally be 

 found amongst the sediment. 



267. Lamippe Forbesi, T. Scott. 



1896. Lamippe sp., T. Scott, Fourteenth F. B. Rept., pt. iii. 



p. 164, pi. iv. figs. 9-13. 

 1901. Lamippe Forbesi, T. Scott, Nineteenth F. B. Rept., pt. iii. 



p. 256. 



Hab. — This, which is a larger and apparently a much rarer 

 species than L. proteus, has been found along with it on 

 Alcyonium digitatum, dredged in the Firth of Forth. It has 

 been observed on the same Alcyonium from other parts of 

 the Scottish coast, and my son has also obtained it in 

 Liverpool Bay. 1 



1 Cf. Tenth Ann. Rept. Liverpool Marine Biological Committee, p. 21 

 (1897). 



