HALIOTIS. 



Plate V. • 



Species 13. (Mus. Cuming.) 



Haliotis Japonica. Hal. testa ovatu-ohlongd, suhplanu- 

 lato-convexd, Uris tenidbua aqnalihus spiraliier fmdcu- 

 latd, concentrice rvguso-plicatd, plicis conspicuis lainel- 

 Iceformibus irregidarihus, forammibus qiduis senisve 

 pe)'viis; luteo, oUvaceo-fusco, viridique undlque pul- 

 cherrime variegatd. 



The Japan Haliotis. Shell ovately oblong, rather 

 flatly convex, spirally corded with fuie equal ridges, 

 concentrically rugosely plicated, plaits conspicuous, 

 lameUa-like, in'egiilar ; five to six holes open, beauti- 

 fully variegated with yellow, olive-brown and green. 



Keeve, Pro. Zool. Soc, 1846. 



Ilab. Japan ; Dr. Siebold. 



This beautiful species from Japan might easily be mis- 

 taken for the following, from the coast of Gibraltar, the 

 shell being developed in stout concentric ridges in a nearly 

 similar mamier ; the detail of sculptm'e will, however, be 

 found on examination, to differ materially. In the II. 

 Japo7nca the smface is engTaved tlu'oughout with fine cords, 

 equidistant from each other, and extremely regidar in their 

 an'angement ; in the H. lamellosa the ridges ai-e veiy utc- 

 gulai-, though mostly alternately broad and nan'ow ; and 

 the interstices are not so distinctly grooved. Coming 

 from such a diff'erent locality these variations may be re- 

 garded of ample specific importance. 



Species 14. (Fig. 14 and 15, Mus. Cimiing.) 



Haliotis lamellosa. Hal. testa oblongo-ovatd, subpla- 

 mdato-convexd, spiraliter tenuiliratd, liris obtmis, irre- 

 gularibtis, foramiidbus qninis seidsve peniis; luteo, 

 olivaceo-fiisco, viridique, vel aurantio-rubenle, tmdique 

 puldierriirie variegatd. 



The lamellated Haliotis. Shell oblong-ovate, rather 

 flatly convex, spii-aUy iinely ridged, ridges obtuse, 

 irregular, with the alternate mostly the larger, con- 

 centrically obliquely plaited, plaits conspicuous la- 

 mell bke, ii-regidar, five to six holes open ; beauti- 

 fuhv \ariegated with yellow, oUve brown and green, 

 or with orange red. 



Lamarck, Ajiim. sans vert. (Deshayes' edit.), vol.ix. p. 29. 



Hab. Gibraltar. 



Having already described the specific peculiarities of 

 this shell in treating of the preceding species, it only re- 

 mains to notice that the oblique lamella-like folds are very 

 irregulaily developed, the most constant character being 

 displayed in the style of the spiral grooving. 



For Species 15, see Plate IX. 



Species 16. (Mus. Cuming.) 



Haliotis MiDiE. Hal. testa rotundato-ovatd, depresso- 

 pland, circa apicem mimdissime et creberrinie spiraliter 

 sidcatd, oblique obsolete imiatd, concentrice plicatd, 

 plicis pecidiariter undidatis, et retrorsmn crispatis, valde 

 irregularihus ; marginiius posticd sinistrdqtie latis, 

 plano-rejlexis ; foraminibus parvis numerosis confertis, 

 ad novenis perviis ; extus luteo-albicante, apice pUcisque 

 sapissime corallo-nbris, epidermide luteo-fuscd indidii, 

 intm caruleo-viridi sangidneoqne irridescente. 



MiDAs's Haliotis. Shell rotundately ovate, depressly 

 flattened, very minutely and closely spu'aUy grooved 

 around the apex, obliquely obsoletely waved, concen- 

 trically plaited, plaits pecidiaily waved and curled 

 backwards, very irregular, posterior and left margins 

 broad and flatly reflexed, holes small, very nmnerous, 

 close-set, about nine open ; outside yellowish white, 

 apex and folds more or less tinged with coral red, 

 covered mth a light yeUowish-brown epidermis, in- 

 side irridescent with blueish green and faint blood 

 tinge. 



LiNNiEUS, Syst.Nat. (10th edit.), p. 779. 



Testa juvenis. 



Haliotis Capensis, Dimker. 



Hab. Cape of Good Hope. 



In order to appreciate the characters of this beautifid 

 species, it should be examined in difterent stages of growth ; 

 in a very young state there is no indication of the wavy 

 cmled plaits with which the shell is so remai'kably charac- 

 terized in a matm-er condition. The entire sui'face of the 

 primitive whorls is very minutely spirally grooved or ele- 

 vately striated ; the plaits begin to develope themselves 

 at the commencement of the last whorl, originating from 

 a point in its centre, and gradually spreading in light 

 lameUa-like \vrinkles bke a concentric flow of ripples on 

 the bosom of a cabn lake. In this state it is of an 

 oblong form, rather acuminated anteriorly, and constitutes 

 the H. Capemis of Dunker, PhUippi, Abbild. und Besch. 

 Conch. Hal. Pl. 1. Fig. 4. As the shell advances in growth 

 the plaits become more thickened and irregidar, and wind 

 round the spire in such a manner as to form a flattened 

 reflexed rim. The spire, generally more or less worn, has 

 a peculiar coppery red inidescence, and the plaits, though 

 covered uatm-ally with a pale yellowish brown epidermis, 

 are coral-red beneath, and mostly exhibit their colour from 

 the effects of friction. 



May, 1816. 



