of British Mollusca. 79 



laud, and Greculaiid {Morch), Jan Mayen {Becker), Spits- 

 bergen (G. 0. Sars), N.E. America {Couthouy c&c), Arctic 

 Pacific [Bergh), Behring Strait {Auri villi us). 



It is Tritonid Reynoldsii, Contliouy, Tritonia pulchella 

 and Dendrotus arborescens, Aid. & Hanc, and perhaps Den- 

 droiwtus elegans, Verrill (Proc. II. S. Nat. Mus. 1880, 

 p. 385). 



Fani. 7. Dotonidae. 

 Genus DOTO, Guvier. 



108. Dotofragilis (Forbes). 



Firth of Clyde and Shetland [A. M. N.), St. Andrews 

 [Mcintosh), Norfolk coast, 12-16 lath. [Meyer), off Puffin 

 Island, Anglesea [Herdman), Plymouth {Garstang). 



Distribution. Adriatic (Graeme), Christiania Fiord, Norway, 

 20 fath. (G. 0. Sars). 



Synonym. Melibma 2nnnatiiida, Johnston. 



109. Doto pennatifida (Montagu). 



110. Doto coronata (Gmelin). 



Shetland [A. M. N.), Moray Firth (G. Murray), St. An- 

 drews {Mcintosh), Arran, N.B., 10-20 fath., and Liverpool 

 district, many places {Herdinan) , Plymouth (Garstang), Firth 

 of Forth (F. M. Balfour). 



Distribution. Mediterranean ( Fera/ty (^'c), Adriatic [Stus- 

 sich), S.VV. France {Fischer), Kiel {Meyer & Mobius), Den- 

 mark {Kroyer), Sweden (Loven), Norway and Finmark 

 down to 10 fath. (G. 0. Sars), N.E. America {Stimpsom^c). 



It is Scilkea punctata (Bonch. -Chant.) , Melibcea ornata. Aid. 

 & Hanc, Melibcea arbuscula, Agassiz, and Tergipes lacinu- 

 latus. Dalle Chiaje, and, according to Bergh, Doto Forbesii, 

 Deshayes, D. uncinata, Hesse, D. pinnigera, Hesse, D. armo- 

 ricana, Hesse, and D. conjluens, Hesse. 



111. Doto cuspidata, Aid. & Hanc. 

 Shetland {A. M. N.). 



Genus Hancockia, Gusse, 1877 

 = Govia, Trinchese, 1886 *. 



Bergh thus defines this interesting genus :— 



" Margo frontalis utrinque digitatus ; rhinophoria quasi ut 



* Trinchese, " Eiclierche anat. sul genera Govia " (Mem della R. Ace. 

 delle Sc. dell' Institute di Bologna, s, o, vol. vii. pp. 183-191, pi. 



