vf BriUsh MoUusca. 77 



ISuboHlfi- 11. CJ.ADOIIEPATICA, Bergh*. 



B. I N F i: i: (t D n a n r n i a t a. 



Fam. o. Pleiirophyllidiadae. 



Genus PLEUKOi'iiYLLiDiA, Mcckcl, 181G { = Di'j)/ii/i/idia, 

 Cuvier, 1817). 



101. PIciiroi)hylUdia LovSni, Bergh. 



Off Dunbar, ^\B., 30 fatli., in mud (/'; M. Balfour), St. 

 Andrews {M'lntos/if in litt.). 



Distribution. Denmark {Lynghege i^ Ilorring), Sweden 

 {Lovcn), Cliristiania Fiord, Norway ((7. 0. Sars). 



It is the Diphyllidia Uneata of Lov(?n and of Forbes and 

 Hanley, but not of Otto. The hitter is a Mediterranean 

 species. 



C. P O L Y B i; A N C H 1 A T A. 



Fam. 4. TritoniidaB. 

 Genus Tritonia, Cuvier. 



102. J'ritonia liomhergi, Cuvier. 



Shethmd [A. M. N.), St. Andrews {Mcintosh), Firth of 

 Forth, 30 fath. {Meyer), Moray Firth [Gordon), Mersey and 

 Isle of Man, 25 fath. (Herdnian) , Plymouth [Garstang). 



Distribution, Marseilles [Marion cf'c), W. France [Fis- 

 cher), Denmark {Morc/i), Sweden (Loven), S. and W. Nor- 

 way [G. 0. Sars). 



It is Doris atrofusca, MacGillivray, and Sphccrostonia 

 Jamesonii, MacGillivray. 



103. Tritonia alba. Aid. it Hanc. 



Subgenus Caxdiella, Gray. 



104. Tritonia plebeia, Johnston. 



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

 drews [Mcintosh), Firth of Forth, Hilbre Island^ Cheshire, 



* The aiTaugemeut here followed is for the most part that of Bergh iu 

 his paper just published, "Die Cladohepatischen N udibrauchieu/" 1690. 

 The most important difference is that 1 have retained I'leurophyllidia 

 in a separate section Inferobranchiata. 



