196 STILIFERTD.E. 



part, thicker below and folded back over the pillar, which is 

 deeply curved and flexuous. L. 0-15. B. 0*1. 



HABITAT : On Echini in several parts of the British 

 seas, from 20 to 80 f. : viz. on E. esculentus, Linn., or E. 

 sphtera, Miill., Torbay (Turton); on E.saxatilis, Linn., or 

 E. miliaris, Lam., Plymouth (Stewart and others) ; on 

 trawl-refuse containing E. esculentus from Plymouth (J. 

 G. J.); Falmouth (Miss Vigurs, fide Cocks); Filey (Miss 

 Backhouse, fide Leckenby); o^E.saxatilis, Scarborough 

 (Bean); on E. esculentus, Cullercoats (Alder); on E. 

 saxatilis, or an allied species for which Mr. Nor man has 

 proposed the name of pictus, Sunderland (Howse) ; on 

 E. esculentus , Berwick (Johnston) ; on E. Drobachiensis, 

 Mull., or E. neglectus, Lam. (if the former is not E. 

 Flemingii of Ball), Shetland, 40 miles N.E. of the 

 Whalsey Skerries, in 78 f. ( J. G. J.) ; Dublin, mixed 

 with Lacuna divaricata (Humphreys). The shell de- 

 scribed by Professor Macgillivray, in his ( Molluscous 

 Animals of Aberdeen, Kincardine, and Banff/ as Stylina 

 stylifera, and stated to have been found by one of his 

 pupils " adhering to an Actinia brought up by the lines," 

 was the young of a common West-Indian land shell, 

 belonging to the Cyclophoridce. The habitat alone might 

 have induced a suspicion that this shell was not our 

 Stilifer ; and I had an opportunity of ascertaining what 

 it really was. The foreign distribution of S. Turtoni is 

 little known. According to Loven it inhabits E. neglectus 

 on the Swedish and Norwegian coasts ; Asbjornsen 

 found it on E. esculentus at Drobak and from fishing- 

 grounds at two other places in Christianiafiord ; Sars 

 in Finmark; Malm on E. neglectus at Loken in the 

 Gotha estuary; and M f Andrew in the Canary Isles. 

 Fischer has recorded it as not uncommon on E. lividus 

 near the mouth-ODening ; but he cites no authority for 



