256 MARSHALL: ADDITIONS TO 'BRITISH CONCHOLOGY.' 



giving the shell a conical appearance, whereas O. acicula 

 is cylindrical, the lower whorls being of the same width. 

 I have never noticed the slightest trace of a tooth in this 

 species, but in O. acicula an incipient one is frequently 

 observable. It is not easy, however, to establish its generic 

 rank, intermediate forms occurring which may be ascribed 

 to either ; but Jeffreys having once again separated it as a 

 distinct species, the weight of his authority may be taken 

 as having turned the scale. The animal has been described 

 in the 'Appendix to British Conchology.' 



Eulima perminima Jeff. ('Annals and Mag. of Nat. Hist.,' 

 June, 1883, & pi. xvi.). After describing the above species, 

 which was dredged 'off Crete, in 70 — 120 fathoms,' Dr. 

 Jeffreys added that he had detected it among his Zetlandic 

 shells. It therefore forms part of the British fauna. He 

 says it is ' proportionately narrower than E. phiiippii^ with 

 a shorter spire and a smaller mouth.' His figure is most 

 unlike any form of E. philippii^ and if it has been correctly 

 drawn no one is likely to mistake it for that species. It is 

 a very minute shell. 



E. ephamilla Watson. (See ' Journal of Conchology,' Octo- 

 ber, 1890). Since writing that paper I have seen the 

 * Challenger ' specimen. It is a very poor one, slightly 

 broader than mine, approaching more in shape to E. 

 subulata of the same size ; but the figure in the ' Challenger' 

 Report appears more graceful, and approximate to the 

 British examples. The young are obtusely keeled, and 

 three of my specimens are slightly curved. The apex is 

 unlike any other British Eulima. I detected a specimen 

 in Mr. Jordan's fine collection, mixed with a series of 

 E. philippii van gracilis, labelled ' Hebrides.' With regard 

 to the locality of the ' Challenger ' specimen — Pernam- 

 buco — I believe the affinity between the Crustacea of 

 S. America and Great Britain has long been known. 



J.C, vii,, Oct. 1893. 



