TESTACELLA. 145 



Testacella Halioti'dea"^, Draparnaud. 



T. haliotidea, Drap. Hist. Moll. p. 121, tab. ix. f. 12-14. T. haliotoidea, 

 F.&H.iv.p.26, pi. G.G. a. f. 1. 



Body contracted towards the front and somewhat pointed at 

 the head, rather smaller in the middle, a little broader beliind, 

 capable of extending itself like a worm, with a thick and 

 tough skin, which is smooth when the animal is crawling at its 

 full length, but transversely wrinkled when it is at rest, yel- 

 lowish-brown, sometimes mottled or speckled with black, red, 

 or white . liiDs or labial lobes flexible and extensible, resembling 

 a third (but much shorter and thicker) pair of tentacles : mantle 

 very small and thin, not much larger than the shell : tentacles 

 rather short, smooth, brown, very little swollen at their ex- 

 tremities : eyes placed on the upper side of the tentacidar ex- 

 tremities, but not quite at the end : hach convex, divided into 

 three nearly equal parts by two longitudinal grooves which 

 extend on each side of it from the front edge of the shell to 

 within a very short distance of the tentacles ; these grooves 

 have parallel offsets above and below, which are finely rami- 

 fied : foot bordered with distinct and prominent edges. L. 3. 

 E. 0-4. 



Shell oblong, compressed, especially in the middle and to- 

 wards the front margin, solid, not glossy, closely striate by 

 the hues of growth, and sometimes also marked by a few in- 

 distinct lines which radiate from the spiral point : epidermis 

 rather thick : spire terminal, sharp, and very small : anterior 

 martjin rounded : posterior margin obliquely truncate : lateral 

 manjins obtusely curved : mouth exceedingly large : pillar Up 

 thickened and slightly reflected : fold flat and sharp-edged. 

 L. 0-25. B. 0-15. 



Yar. scutulum. Body yellowish, speckled with brown. Shell 

 narrower : spire more produced and pointed. Testacella scu- 

 tulum, Sowerby, Gen. Sh. f. 3-6. 



Habitat : Gardens at Norwich, Plymouth, Bideford, 

 Youghal, and Bandon. The variety, which was first dis- 

 covered by the late Mr. Sowerby in his garden at Lam- 

 beth, is not uncommon in many parts of the metropolitan 



* ResembHng a Haliotis or ear shell. 



