194 WORMS. TESTACEA. 59. Helix. 



555.11 .fossaria. Horn-colour, suboval, with 5 or 6 

 rounded deeply divided whorls : aperture oval. 



Montague, t. 16./, 9. Linn. Trans viii. t. 5./*, 9. 



Shell 3 eighths of an inch long, thin, pellucid, refcmhles the 

 laft but is much smaller, the whorls are more deeply divided and 

 very rarely wrinkled acrofs, and the aperture is more oval. 



556. H. detrita. Conic, white witii a rufous spiral band 

 or more : aperture oval. 



Montague Brit. Shells., p. 384. lab. it./, t. 



Shell 3 quarters of an inch long, with 6 slightly rounded whorls, 

 a little wrinkled longitudinally, generally marked with a single* 

 band, fometimes with 3 on the larger whorl the middle one of 

 which is narrower 1 inner-lip a little reflected, and forming a 

 small deprefsion. 



557. H. succinea. Oblong, acute, fulvous,, diaphanous, 

 with 3 whorls: aperture oval. 



Montague t. 16./. 4. Donov. t. 168./. 1. H. putris. 



Shell hardly half an inch long, very thin and brittle, amber- 

 colour, with the first whorl very large but not tumid : aperture 

 reaching over more than half the shell : lip very thin. 



558. II. putris. Oval, obtuse,yellow, with 4 whorls; 

 aperture oval. 



Br. Zool. t. 86. /. 137. Montague t. 16. /. 3. H. percgra. 

 2. With a white thick lip. L. Trans, viii. t. 5./. 8.* 

 Shell an inch long, often covered with a dusky-brown skin, thin, 



with numerous oblique stria? : whorls 4, the first large and tumid; 



aperture reaching over 3 fourths of the shell. 



559. H.tentaculata. Conic, obtuse, yellowish-white, with 

 5or 6 rounded whorls : aperture oval. 



Br. Zool. U 86./. 140. Donov. U 93. Da Costa t. 5 / 12. 



Shell half an inch long, diaphanous, with deeply divided whorls, 

 rather obtufc : aperture fuborbicular, clofed with a concentrally 

 wrinkled lid. 



560. H. canalis. Conic, horn-colour, with 5 smooth 

 rounded whorls: aperture suborbicular; pillar with 

 a groove. 



Montague Brit. Shells p. 309. t. 12./. 11. Turbo. 



Shell 3 eighths of an inch long, pellucid, acute, with the first 

 whorl large: aperture fubangular ; outer-lip thin; pillar broad, 

 white, grooved, ending in a fmall depression. 



561. H. auricularis. Conic, smooth, yellowish- white, 

 obtuse, with a short acute spire: aperture dilated, 

 ear-shaped. 



Br. Zool. t. 86./. 138. Donov. t. 51./. 1. Da Costa t.5./. 17. 

 2. Montague p. 381. t. 16./. 1. H. limofa. 



Shell an inch or more long, often covered with a brown skin, 

 with 4 whorls, the first very large and tumid and finely striate 

 acrofs, within yellowish : lip much extended, a little reflected, 

 fometimes projecting into an angle above. 



562. H. glutinosa. Very tumid, yellow horn-colour, 

 with 3 whorls ending in an obtuse spire : aperture 

 oval, very large. 



Montague Brit. Shells, p. 379. tab. 16./. 5. 



Shell above half an inch long, very thin and brittle, fmooth or 

 faintly wrinkled, fometimes covered with a glutinous skin: aper- 

 ture reaching nearly to the tip. 



