DAPHNELLA. 315 



Section THESBIA, Jeffreys. 

 D. NANA, Loven. PL 32, fig. 28. 



Encircled by numerous punctate impressed lines ; milk-white. 

 Length, 6 mill. 



Northern Europe Arctic. 



Dr. Jeffreys (Brit. Conch., iv, 359) refers to this species 

 Columbella rosacea, Gould (Manual, v, 160), a shell which does 

 not appear to me to be nearly related to it. 



Unfigured Species of Section Thesbia. 

 The following are described by Rev. R. Boog Watson : 



D. TRANSLUCIDA (Kerguelen IsL), D. ERITIMA ( Tristao da Gunha), 

 D. CORPULENTA (Kerguelen IsL), D. PLATAMODES (ditto), D. 

 PAPYRAOEA (ditto), D. PRUINA (Azores), D. MONOCEROS (S. W. 

 of Sierra Leone), D. DYSCRITA (St. Thomas, W. L), D. 

 BRYCHIA (Lai. 1 47 f N., long. 24 26' W., Mid- Atlantic, 

 1850 fms.). 



Section TARANIS, Jeffreys, 1870. 



D. MORCHI, Malm. PL 29, fig. 66. 



Periphery strongly, tubercularly angled, the shoulder above 

 it sloping, below the periphery there are several raised cinguli 

 forming inferior carinations, crossed throughout by flexuous, 

 narrow longitudinal plications ; whitish. Length, 4*5 mill. 

 Norway to Mediterranean Sea ; off Newport, R. /., 



365 fms. (Verrill) ; Gulf of Mexico, 805 fms. (Dall). 

 It is Pleurotoma demersum, Brugnone (not Bellardi), and 

 Bela demersa, Tiberi. 



D. PULCHELLA, Yerrill. PL 29, fig. 63. 



A smaller species than the preceding, not so sharply angu- 

 lated, the carinse sharp but not nodulous, those on the body- 

 whorl six in number, besides one or two on the canal. 



Length, 2-20 mill. 



Off Martha's Vineyard, 487 fms., one specimen. 



Dr. Dall thinks this may be included in the preceding species, 

 as European specimens of D. Morchi sent to him by Dr. Jeffreys 

 and Prof. Sars, appear to agree with it pretty well. 



