24 HALIOTIS. 



The characters of this species are not very decided ; the 

 pricks in the grooves being difficult to see without a lens. 

 They are caused, as in other species, by fine crossing striae 

 which are obsolete on the flat surface of the ridges. 



26. MULTiPERFORATA, f. 59, Reevs. — Testa ovato-subob- 

 longa, antice attenuata, fusco viridique variegata, subrugosa, 

 spira parva, cuprea ; foraminibus numerosis, rotundis. — I 

 doubt mucli whether this species is specifically distinct from 

 H. sanguinea, but it does not shew the same width and 

 inflation in the spiral or upper portion, nor the same degree 

 of contraction in the middle, and towards the end. 



27. SANGUINEA, f. 93, 94, Hanley. — Testa ovato-oblonga, 

 postice subrotunda, tumida, antice subattenuata medio con- 

 tracta, fusca nigricanti, oblique rugata ; foraminibus 

 rotundis, approximatis ; area marginali spiraliter lirata ; aper- 

 tura argentea, intus ad spiram sanguineo tincta. — Swollen 

 towards the spine, contracted in the middle and attenuated 

 towards the anterior extremity, darkly coloured and wrinkled. 

 The apex outside has a coppery tint and inside a streak of 

 blood-colour. It is difficult to distinguish very young speci- 

 mens of this from those of H. Ilidce, but the former shew a 

 minute spiral beading, and the latter are smooth. 



28. EDGOSA, f. 98, Reeve. — Testa fusca, irregulariter 

 ovata, concentrice subundata, spiraliter valide lirata, liris 

 inaequalibus, planatis, carina tuberculifera elevata foraminibus 

 majusculis ; area marginali rugose lirata. — A coarsely ribbed 

 brown shell, with the tuberculiferous ridge prominent and the 

 holes rather large. 



29. LAMELLOSA, f. 27, 29, 30, Lamarck. — Testa ovato- 

 oblonga, spiraliter conspicue lirata, concentrice oblique pli- 

 cata, plicis elevatis, undatis, subramosis, angulo tuberculifero 

 elevato acuto, area dorsali excavata, medio costata. — The 

 variety f. 29 Japonica, Eeeve, differs no more from the 

 typical ideal than other varieties differ among themselves. 



30. RETICULATA, f. 76, 96, 122, 126, Reeve.— Testa ovato- 

 oblonga depresso-subcomplanata, spiraliter striata, obscure 

 fusca, maculis subtrigonis fuscis et parvis albidis reticulata, 

 angulo submarginali elevato, acuto ; prope marginem exter- 

 num nonnunquam laminatim rugata. — I can see no reasona- 

 ble ground for separating Reeve's incisa, f. 76, or the var. f. 



