260 



EEPORT 1868. 



VIII. 



Species peculiarly characteristic of the Fauna of the Outer Haaf. 



The following list gives the species which impart a peculiar character to 

 the fauna of the deep sea of Shetland, known as the " Outer Haaf," in a 

 depth of 80-170 fathoms. The Molluscan inhabitants of this region are 

 highly interesting, but it is not within my province here to speak of them. 

 Crustacea are few in numbers, Portunus tuberculatus, Munida, two or three 

 species of Crangon, Pandalus brevirostris, Cumacea, Ampelisca, and Epimeria 

 tricristata .being the most abundant. Echinodermata are abundant, and cer- 

 tain species sometimes in the most extraordinary profusion. Polyzoa and 

 Sponges are very abundant, but of Coelenterata there are but few species; 

 those species which do occur belong, for the most part, to the Zoantharia. 

 Caryophyllia Smithii v.ar. borealis is found inhabiting these depths in 

 marvellous abundance ; Zoanthus anguicoma is common, creeping over 

 Sponges from the greatest depths, and an occasional Bulocera eques or 

 Tuedicv, or a noble Ulocyathus arcticus presents itself to our admiring gaze. 

 Yery few Tunicata occur below seventy fathoms. 



The names which follow are of the most abundant or, at any rate, more 

 conspicuous species ; the list might, had I so wished, have been greatly 

 extended. 



Hyas coarctatus, Leach. 

 Portunus pusillus, Leach. 



- tuberculatus, Roux. 

 Ebalia tuberosa (Penn.). 

 Atelecyclus septemdentatus (Montagu). 

 Pagurus pubescens, Kroyer. 



Munida Bamffia (Penn.}. 

 Crangon Allmani, Kinahan. 



- nanus Kroyer. 



- spinosus, Leach. 



- serratus, Norman. 

 Sabinsea septemcarinata (Sabine). 

 Hippolyte securifrons, Norman, 



- cultellata, Norman. 

 Pandalus annulicornis, 



brevirostris, Rat/ike. 

 Lophogaster typicus, M. Sars. 

 Cumace.a, species. 

 Anonyx tumidus, Kroyer. 

 Ampelisca, species. 

 Kroyera altamarina, B. fy W. 

 Odius carinatus (Bate). 

 Epimeria tricristata, Costa. 

 Amphithoe albomaculata, Kroyer. 

 SiphonoBcetes typicus, Kroyer. 

 Naenia rimapalmata, Bate. 

 Pontocypris mytiloides (Norman). 

 Bairdia complanata, Brady. 

 Macrocypris minna, Baircl. 

 Cythere concinna, Jones. 

 -- angulata (G. O. Sars). 

 -- dubia, Brady. 



- costata, Brady. 



- mucronata (G. O. Sars). 



- antiquata (Baird*). 



Cythere Jonesii (Baircl). 



abyssicola (Sars). 



crenulata (Sars). 



leioderma, Norman. 



Cytheridea papillosa, Bosquet. 



punctillata, Brady. 



subflavescens, Brady. 



Sorbyana, Jones. 



Eucythere declivis (Normati). 

 Sarsiella capsula, Norman. 

 Cytheropteron nodosum, Brady. 

 latissimum (Norman). 



alatum, G. O. Sars. 



Bythocythere turgida, G. O. Sars. 

 Cypridina Norvegiea, Baird. 

 Conchoecia obtusata, G. O. Sars. 

 Polycope dentata, Brady. 



orbicularis, G. O. Sars. 



Verruca Stromia (Midler). 

 Alcippe lampas, Hancock. 

 Nymphon Stromii, Kroyer. 

 Scrupocellaria inerniis, Norman. 

 Bicellaria Alderi, Busk. 

 Flustra Barleei, Busk, 

 Hippothoa catenularia, Jameson. 



expansa, Norman. 



Membranipora sacculata, Norman. 

 Dumerillii (Audouin). 



cornigera, Busk. 



rhynchota, Busk. 



Rosselii (Audouin). 



vulnerata, Husk. 



Lepralia crystallina, Norman. 



auriculata, Hass. 



bella. Busk. 



