1890.] MARINE MOLLUSCA OF ST, HELENA. 279 



mella is different. It is very like E. aciculata. Pease, of which 

 E. retrorsa, Sowerby, is a synonym. It differs iu the following 

 respects : — the hp is more sinuated above and more prominently 

 curved below, the spire is rather less acutely produced, and the 

 semipellucid zone beneath the suture is not so broad in proportion 

 to the rest of the whorl beneath. 



EULIMA SUBCONICA. 



Eulima conica, Sowerby (non C. B. Adams), Conch. Icon. fig. 44. 



Both the figure and the description of this species are misleading, 

 for Mr. Sowerby was careless, especially when engaged with small 

 forms. He describes the last whorl as " angulated," and a decided 

 angle is depicted in his figure. The type has a much less pronounced 

 angulation ; the specimens from St. Helena are more hke the figure, 

 but still not quite so bulging at the periphery. The apical portion 

 of the spire is sometimes straight, occasionally curves to the left, or, 

 as in the type, turns to the right, not as drawn by Sowerby, who 

 has reversed the direction. 



The aperture is neither " rather square " nor " acuminated beneath^ 

 It should have been described as oblkiuely oval and a triiie more 

 acuminate above than below. The columella is not "rather tortuous,^' 

 but slightly curved and reflexed over the umbilical region. Mr. 

 Sowerby apparently drew a bad figure and then based his description 

 upon it. 



There are thirteen whorls in the type, which is four and a half 

 milUmetres long. They are separated by a distinct suture, and the 

 semipellucid margin, beneath it, occupies a little less than one-third 

 of the whorl. Tlie few uppermost are a trifle convex, the rest almost, 

 but not quite, flat. 



The name conica was already in use for a Jamaican species of this 

 genus, described by C. B. Adams in his 'Contributions to Conchology,' 

 p, 110, Hisdiagnosisappliesvery closely to the St. Helena specimens; 

 but, as I have not a specimen of this species for comparison, I, for the 

 present, prefer to consider them a distinct, but closely allied Ibrm, on 

 which account I have proposed the name subconica. 



Eulima germana. (Plate XXIII. fig. 26.) 



Testa minima, nitida, pellucida, plus minus leviter arcuata ; an- 

 fraclus 9, planiusculi, sutura distincta vix obliqua discreti ; 

 apertura ovata, siiperne acuminata, lonyit. totius \ subatquans ; 

 labrumprominens, arcuatum ; columella obliqua, eurvata, antice 

 incrassata. 

 Lonyit. 2g, diam. 1 millim. 



Of this very little species, two specimens were obtained by Capt, 

 Turton, one somewhat more curved than the other. This same 

 specimen also exhibits a continuous series of varices upon the rii'ht 

 side. The pellucid zone beneath the suture in the penultimate whorl 

 is about half as broad as the space between it and the top of the 

 body-whorl. 



