LACHESIS. 225 



toothed within, without sinus; color usually reddish brown, 

 sometimes spotted ; operculum yellowish. Length, 5-8 mill. 



British Channel to Southern Europe, W. Africa. 



The spire is sometimes truncated in live specimens. On the 

 Southern Coast of England and the Channel Islands the species 

 is common but local, in the laminarian zone, upon rocky and 

 stony ground. The animal swims with the foot upwards. 



There is a large synonymy : Fusus turritellatus, Desh., Fusus 

 subnigrus, Brown, L. mamillata, Risso (fig. 14), PI. Chauveti, 

 and PI. perlatum, Requien, Murex Folineae, Chiaje, granulata, 

 Risso, PL multiplicata (Forbes), Reeve (PL 27, fig. 4), BUG. 

 Lefebrui, Marav. There are a number of color varieties distin- 

 guished by Jeffreys, Monterosato and Tiberi. 



L. VULPECULA, Monterosato. PI. 33, fig. 67. 



Whorls very convex, with deeply impressed sutures, spire 

 longer, canal more pronounced, longer than in L. minima, some- 

 what recurved, aperture not toothed ; sculpture strong but narrow, 

 forming a clathrate surface. Length, 5*3 mill. 



Mediterranean. 



It is L. recondita, Brugnone. 



L. CANDIDISSIMA, Phil. PI. 32, fig. 23, 22. 



Shell of seven whorls, strongly granulated by decussating 

 sculpture ; outer lip toothed within ; usually white, sometimes 

 yellowish, or with the granulations darker. Length, 10 mill. 



Mediterranean; W. Africa. 



The colored variety referred to above is L. lineolata, Tiberi 

 (fig. 22) = L. Massena, Chiaje, not Risso. 



L. FOLINE^E, Phil. PL 32, fig. 25. 



Shell ovate-fusiform, of six rather flattened whorls, with 

 shallow longitudinal and revolving grooves, cutting the surface 

 into squares ; lip with two remote tubercles ; canal suboblique, 

 very short, dilated at the base ; surface fuscous, the sulci fulvous 

 or white. Length, 7*5 mill. 



Mediterranean (very rare). 



This is L. areolata, Tiberi, and Fusus granulat us, Calcara. 



L. PELLIS-PHOC^E, Reeve. PL 27, fig. 3. 



Shell with close, fine, longitudinal and revolving lines, lip 



