WORMS. TESTACEA. 58. Turbo. 179 



Br. Zool. t. 81./. 111. in. A. Donov.t.28. Da Costa t.j.f. it. 



Shell an inch and a half long, whitish, fometimes mixed with 

 brown or ferruginous : whorls rounded, fcparated by a deep 

 groove : aperture margined. 



4jl. T. Clathratuluz. Taper, with 5 or 6 whorls and 

 about 15 approximate longitudinal ribs. 



Jdams Microsc. t. 14./. 19. Walk. min. Shells/. 45. 



Shell minute, white, opake, refembling the last, except in size, 

 number of whorls and deposition of the ribs : aperture margined. 



4j2. T . 'iiitidissiinus. Taper, acute, pellucid-white, with 

 9 smooth much raised and rounded whorls. 



Montague Br. Shells p. 299, ta3. 12./. t. 



Shell one tenth of an inch long, very slender, with the whorl» 

 much fwollen and feparated by a deep depression. 



433. T. unicus. Taper, acute, pellucid white, with 9 

 rounded and raised whorls finely striate longitude 

 nally. 



Montague U 12. f. 2. Walker f. 40. Adams t. 14. f. 7. 



Shell 2 tenths of an inch long, with the striae fomewhat undulate, 

 the intermediate fpaces with extremely fine tranfverfe ones : aper- 

 lure inclining to oval. 



434. T . duplicate. Taper whitish, with 1 4 or 15 whorls 

 each marked with 2 prominent acute transverse 



ridges. 



Br. Zool. t. 81./. 112, Donovan U 112. Da Costa t. 6.f. 3. 



Shell 2 inches and a half long, finely striate acrofs between the 

 ribs : aperture fuboval. 



435. T. subtruncatus. Tapering to an obtuse point, 

 pellucid yellowish-white, with 6 or 7 swollen smooth 

 whorls. 



Montague Br. Shells p. 300. tab. 10. f. 1. 



Shell 2 tenths of an inch long, fometimes with a few faint lou> 

 gitudinal striae : airfare inclining to oval. 



436. T. truncatus. Cylindrical, glossy, pellucid, horn- 

 colour, with 4 smooth swollen whorls, abrupt as if 

 truncate at the point. 



Montague Brit. Shells p. 300. "to*. 10./. 7* 



Shell 2 tenths of an inch long, rarely with a few longitudinal 

 striae, or crenulate in the futures : whorls feparated by a deep line : 

 aperture slightly margined, fuborbicular. 



437. T. littoreus. Suboval, pointed, spirally striate ; the 

 first whorl very large : outer-lip thin and spread- 

 ing. 



Perriwinkle. Br. Zool. t. Bi.f. 109. Donovan t. 33./. 1. 2. 



Shell about an inch long, with about 5 whorls feparated by a 

 fine line, various shades of red brown or yellow, plain or fpirally 

 banded with various colours : aperture fuborbicular, 



438. T.jugosus. Suboval, tumid, with 4 spirally grooved 

 Whorls ; the first very large : outer-lip thin, slightly 

 crenate. 



Montague SuppL t. 20./. 2. Z. Trans, viii. f. 4./. 7. 



Shell 3 eighths of an inch long, not much pointed, dull yellow or 

 fulvous, with fometimes a greenish or purple cast, with white 

 grooves : pillar broad, fmooth. 



439. T. tenebrosus, Subconic, rather obtuse, dark choeo* 



