6 THE DIEEOTOR's EEPORT. 



Anthea cereus. Alcyonium digltatuni and Gorgonia verrucosa are 

 seldom found within the Souud^ though they are common on rough 

 ground in deeper water. 



Of the Echinoderms Antedon rosaceus may be dredged in abund- 

 ance close to the Mallard buoy. It appears to congregate in deeper 

 holes during the winter months, and to spread itself along the shore 

 during the summer. Echinids, Holothurians and Ophiurids are 

 tolerably common, and Asterias glacialis is ubiquitous, A. ruhens 

 being common, but less frequent. Asterina gibhosa is found on 

 every rock between tide marks. 



Several Planarians have been found, but their species have not 

 yet been accurately determined. The most common form is Lepto- 

 plana tremellaris. 



Nemertines are tolerably common. Lineus ohscurus is the most 

 common form. Micrura fasciolata, Nemertes Neesii, A.mphiporus 

 pulcher and lacteus are not uncommon, and the palaeonemertine 

 Carinella annulata is found in the Catte water. 



Chaetopod worms are found in great abundance and vai'iety. The 

 list given in the second number of the ' Journal ' does not neai'ly 

 enumerate the species which occur within the Sound. As a separate 

 report on the Ohaetopoda may be expected in a future number, I 

 will not attempt to give a list of the forms which we have collected, 

 but will merely mention the discovery of Pachydrilus by Mr. 

 Beddard in the sand at Jennycliff Bay, and the occurrence of the 

 beautiful little Gattiola spectahilis near Bovisand Fort. 



A note on Oligochaeta by Mr. Beddard will be found at the end 

 of the journal. 



The Crustacea will form the subject of a separate memoir by Mr. 

 W. F. R. Weldon, and I need not say more than that we have 

 collected nearly all the species of Decapods enumerated in Mr. 

 Heape's list, and have made some few additions. The Amphipods 

 and Isopods have not yet received sufficient attention, and the same 

 may be said of the Cirrhipedes and Ostracods. No mention is made 

 of Cladocera in the list above mentioned, but Podon and Evadne 

 spinifer are some of the commonest forms taken in the tow-net during 

 the summer. 



The Mollusca have received the attention of Mr. Walter Grarstang, 

 who gives the following account : 



" The common littoi'al Gastropods are to be found in abundance 

 on the rocks and beds of Fucus left bare by the tides {Nassa reticulata, 

 Murex erinaceus. Purpura lapillus, Littorina littorea and littoralis, 

 Patella vulgata, and several species of Trochus). Five or six species 

 of Chiton occur, inhabiting the littoral and lamiuarian zones. 

 Helcion pellucidum is very common on fronds of laminaria, and 



