88 



1. PERIGONIMUS REPENS, T. S. Wright. Aimctylis repens 

 Wright. 



On Dentalium entalis, the opercuhim of Fusus, and other 

 shells. Alder. 



Common on operculum of Buccinum (and on the shell itself), 

 and on Dentalium, Turritella, Hyas, &c.; dredged at Stations 

 1, 7, 9 ; 30 miles east of Cullercoats, and 5 J miles east of Blyth. 



Gonophores in July, medusoids liberated September-February. 



2. PERIGONIMUS LINEARIS (Alder). Atractylis linearis, 



Alder. 



On TurriteUa, Astarte danmonice and other shells from deep 

 water, Cullercoats. Alder. 



3. DICORYNE CONFERTA (Alder). Eudendrium confertum, 



Alder. 



On Buccinum and Fusus from deep water, Cullercoats. Alder. 

 Large colonies on Dentahum and the operculum of Buccinum 

 dredged from Stations 4, 6, 8, and 8 miles E.JS. of Cullercoats. 

 Gonophores : August. 



4. BOUGAINVILLIA RAMOSA (Van Beneden). Atractylis 



ramosa, Van Beneden. 



From the deep water fishing boats. Alder. 



From 14 fathoms east of Cullercoats, growing on Flustra, also 

 on Turritella, 5 J miles east of Blyth (Kramp). 



Gonophores : medusoids Hberated Juty- October. 



A few abnormal medusoids were noticed, having the following 

 pecuHarities : — 



(1) Three labial tentacles and five tentacular bulbs, one of 

 which possessed only one tentacle, another having thi'ee (with 

 three black oceUi). 



(2) Four labial tentacles, one of which was branched ; only 

 one tentacle springing from each of the four bulbs, but two black 

 pigment spots on each bulb. 



5. ATRACTYLIS ARENOSA, Alder. 



Occasionally at Tjmemouth.and Cullercoats, on the underside 

 of stones. Alder. 



