272 DR Johnston's descriptive catalogue of the 



whorls six ; aperture suhorbicular. Length iVth. Turbo semi- 

 striatus, Mont. Tost. Brit. 8up. 136. Cingula pulchra, Johnston 

 in Edin. New Phil. Journ. Juno 1828, p. 80. 



Hab. Berwick ]lay, very rare. 



This differs from the preceding in being broader in proportion to its length, in 

 having two rows of oblong spots on the body and second whorls, in being 

 marked spiral!}' with faint impressed spiral strise, and in the whorls being 

 divided by a deeper suture. I have referred the species to the Tarbo sem- 

 istriatns of Montagu on the authority of my valued friend Mr Alder. 



4. R. jMKva, sliell couical, light-})rowii, with six rounded whorls 

 ribbed across, the ribs smooth, obtuse, and rather numerous; 

 aperture roundish, with thin and slightly reflected lips. Length 

 two lines. Turbo parvus, Jfont. Test. Brit. 310. Cingula parva, 

 Fletn. Brit. Anim. 306. 



Hah. Berwick Bay, rare. 



The ribs are strong, equidistant, and scarcely interrupted at the suture, but they 

 terminate abruptly on the body-whorl in a faint spiral ridge. The lower 

 half of the Ijody is smooth, and marked with a brown band. 



5. It. alba, shell conical, whitish, banded with brown, smooth, glossy, 

 ribbed across the whorls, of which there are six, the apical ones 

 plain ; aperture roundish-oval with a slightly everted lip. Length 

 -i\th. Forbes, Faun. Mon. 16. Cingula alba, Flem. Br. Anim. 

 309. 



Hab. Berwick Bay, rare. 



Mr Forbes remarks that this is probably a variety of R. parva. 



6. It. subulata, shell subulate, very smooth, white, with two brown 

 bands on the body winding up the spire at the suture ; whorls 

 nine or ten, flat, scarcely defined ; aperture ovate, pointed above, 

 white with a pellucid rim. Length vy-ths. Turbo subulatus, 

 Billio. Rec. Sh. 881. Phasianella subulata, Flem. Br. Anim. 301. 

 Melania Donovani, Forbes, Faun. Mon. 15. 



Hab. Berwick Bay, rare. 



Besides the two bands about the middle of the body, the base is tinted with the 



same colour. The inner lip is reflected ou tho pillar, and continued round 



to the outer, as in other Rissoee. 



7. R. reticulata, shell conical, strong, opaque, yellowish blotched 

 with brown, cancellated with spiral and transverse strife ; whorls 

 six, rounded, defined by a deep suture, the apical ones smooth ; 

 aperture round with a slight perforation behind the jDillar, the 

 lips plain, thickish. Length -^^ih., breadth one half the length. 

 Turbo reticulatus, Mont. Test. Br. 322. pi. 21. fig. 1. Cingula 

 reticulata, Flem. Br. Anim. 306. 



Hah. In shell sand, rare. 



