FISSURELLA 



Species 00. (Mus. Cuming.) 



FissuRELLA Bal.\noides. Fiss. testa ovatd, anlia- siih- 

 atienuald, subconicd, lavigatd, radiaiim leviter sulcata, 

 orijicio oblongo-ovato, medio mhcontracto ; flavicanle, 

 i-osi'o iuterdum lliicld, olivaceo et hiteim viridl radiatd, 

 radii.i lii/eis satttratioribus iiotatis, virescente-albd circa 

 orijiciiim. 



The Balanus-like Fissurella. Shell ovate, a little 

 attenuated anteriorly, rather conical, smooth, ra- 

 (liately slightly grooved, oi-ifice oblong-ovate, a little 

 contracted in the middle ; yellowish, sometimes 

 faintly tinged with rose, rayed with olive and dark 

 green, rays marked with lines of the colour darker, 

 greenish-white around the orifice. 



Hah. ? 



The painting of this species somewhat resembles that 



of F. tiimbosa. 



Species 07. (Mus. Cuming.) 



FissuRELLA Indusica. Fiss. testd ovatd, eleoati/iscntd, 

 sidicoiiicd, vertice aiitice inclinato, liris radiaid/bns 

 irrniiilai-ibus id coiiceiilricis undiqne subobtnse clatliratd, 

 orijicio oijloiujQ, iiivdiu leviter cordracto ; virescente- 

 albd, oliraceo-viridi radiatd. 



The Indus Fissurella. Shell ovate, rather elevated, 

 subconical, with the top inclined anteriorly, rather 

 obtusely latticed throughout with concentric and 

 irregular radiating ridges, orifice oblong, slightly 

 contracted in the middle ; greenish-white, rayed with 

 olive-gveen. 



Ilab. Kurrachee, Mouth of the Indus. 



Very similar to the following well-known species of our 



own shores in form, sculpture, and colouring. 



Species 08. (Mus. Metcalfe.) 

 Fissurella reticulata. Fiss. testd ovatd, subconicd, 

 medio leratiusculd, vertice antice inclinato, radiaiim 

 lirald, liris aiigustis, alternatim majoribus, lineis con- 

 cenlricis lamellaformibus, plus minus distantibus, 

 sqmmato-reticulalis, orijicio ovali, celate rolandalo ; 

 viresrente aid squalide albd, olivaceo-viridi liic illic 

 obscure radiatd. 



June, 



The RETICULATED FissuRELLA. Shell ovate, subconical. 

 slightly lifted in the middle, top inclined anteriorly, 

 radiately ridged, ridges narrow, alternately larger, 

 reticulated with more or less distant concentric 

 lamelliform lines, orifice oval, rounded with age ; 

 greenish or dirty white, obscurely rayed here and 

 there with olive-green. 



Patella Crreeca, Peiuiant, Brit. Zool. ed. 4, vol. iv. p. 14 t, 

 pi. 89, f. 1.^3. 

 Patella ri-tinihiln, Dnnovan. 



l' ■' ' /.v., , -uuvrby. 



Eadem. Ftssarellaaperlura, Jlontagu. 

 Sipho radiata, Bi'own. 

 Hab. Britain and the Mediterranean. 



So many species have been confounded together under 

 the common appellation of Fissurella Gr/pca, that it is 

 necessary the name should disappear from the nomen- 

 clature. D'Orbigny enumerates thi-ee species, from Peru, 

 Patagonia, and the West Indies, the last-named being the 

 F. Gro'ca of Lamarck, and the preceding species shows 

 how distinctly this type is represented in the East. 



Species 69. (Fig. a, Mus. Metcalfe. Fig. ^, Mus. Cuming.) 



Fissurella Inch. Fiss. testa oblorujo-ovat/t, ieniiiciild. 

 medio siihroiiird, niiliiv invliiiald, radiali,ii rushitd, 

 costis allenniliui i.i.ijnrihn^. Iniri, rn„r,'„lnns hi,„rll„- 



formibiis 



nitiiVr 



chit lira lis. 



tuudato-ovali ; albd, costis Majoribus spiidiceis, intcr- 

 stitiis interdum niyripunctatis. 



Inge's Fissurella. Shell oblong-ovate, rather tiiin. 

 somewhat conical in the middle, and inclined ante- 

 riorly, radiately ribbed, ribs alternately larger, neatly 

 and finely latticed throughout with concentric lamel- 

 liform lines, orifice rotundately oval ; white, the 

 larger ribs fawn-coloured, iuterstiees between the 

 ribs sometimes black-dotted. 



Ilab. Kaiue's Island, North Australia ; luce. 



Tlu! fawn-coloured ribs, which radiate from the orifice 

 at about equal distances, are very characteristic in this 

 species. 



