FISSURELLA 



Species 33. (llus. Cuming.) 



FissuRELLA SCUTELLA. Fiss, testd trapeziformi-ovatd, 

 valdi depressd, lateribus medio subcompressis, extremi- 

 tatibus levatiusculis, concentrice elevato-striatd, inter- 

 ditiis incisis, orificio oblongo, suhamplo ; spadiceo-albd, 

 purpureo-fuicescente radiatd. 



The little platter Fissurella. Shell trapeziformly 

 ovate, veiy depressed, sides slightly compressed in 

 the middle, extremities a little lifted, concentrically 

 elevately striated, interstices engraved, orifice oblong, 

 rather large; fawn white, rayed with light purple- 

 brown. 



Gray, Brit. Mus., Sowerby, Cat. FUsurella, No. 42. Conch. 

 Illus. f. 34. 

 Fissurella trapezina, Sowerby (Pro. Zool. Soc, 1834). 



Hah. Eaines' Island, Torres Straits ; luce. 



A singular little broad flatted species ivith a rather large 



orifice. 



Species 34. (Mus. Cuming.) 



Fissurella sagittata. Fis^. tedd ovatd, depressiiiscuM, 

 lateribus subcompressd, radiatim sulcata, orificio oblongo, 

 vivide rosaceo et albo radiatd, radiis albis punctis ni- 

 gricautibus sagitlatis notatis. 



The arrow-marked Fissurella. Shell ovate, rather 

 depressed, a little compressed at the sides, radiately 

 grooved, orifice oblong ; rayed with bright pink and 

 white, the white rays being marked with blackish 

 arrow-head dots. 



Hab. Cape of Good Hope. 



A pretty piuk-rayed shell in which the uncoloured 

 interstitial rays are marked with dark arrow-head spots. 



Species 35. (Mus. Cuming.) 



Fissurella dubia. Fiss. testd ovatd, antice attenmtd, 

 depressd, radiatim costatd, liris tenuibus concentricis 

 numerosis flmbriatd, orificio oblongo, latiuscido, medio 

 coarctato ,- oUvaceo-cinereo irregulariter tincid et ra- 

 diatd. 



The doubtful Fissurella. Shell ovate, attenuated 

 anteriorly, depressed, radiately ribbed, and frilled 

 with numerous fine concentric ridges, orifice oblong, 

 August 



rather broad, contracted in tlie middle ; irregidarly 

 stained and variegated with olive-ash. 

 W. Port Natal. 



Very closely allied to F. Natalensis, but of much more 

 growth. 



Species 36. (Mus. Cuming.) 



Fissurella hiantula. Fiss. testd ovatd, lateribus jiecu- 

 liariter compressd, extremitatibus levatis, radiatim ru- 

 goso-liratd, interstitiis subobsolete cancellatis, orificio 

 amplo, oblongo, latitisculo ; albidd, pallide spadiceo 

 trnctd, cinereo-nigricante prope vMrginem subobscuri 

 radiatd. 



The gaping Fissurella. SheU ovate, peculiarly com- 

 pressed at the sides with the extremities lifted up, 

 radiately roughly ridged, interstices somewhat obso- 

 letely cancellated, orifice large, oblong, rather broad ; 

 whitish, stained with light fawn colom-, rather ob- 

 scuj-ely rayed near the margin with ashy-black. 



Lamarck, Anim. sans vert. (Deshayes' edit.)vol. vii. p. 597. 

 Fimtrella Javanicensis, Soweri)y (not of Lamarck.) 



Hab. Cape of Good Hope ; Hannah. 



There can be little doubt, as suggested by M. Deshaves, 



that tills species, which 1VL-. Sowerby assigns to Lamarck's 



F. Javanicensis, belongs to F. hiantula of the same author, 



and not that which is figured for it in the Conchological 



Illustrations. 



Species 37. (Mus. Cuming.) 



Fissurella nigra. Fiss. testd oblongo-ovatd, antice sub- 

 atfenuatd, depressd, lateribus si(bcompressd, radiatim 

 costatd et liratd, costis liris jue rugosis, subacutis, striis 

 concentricis clathratis, orificio oblongo; purpiireo- 

 iiigrd, orificii limbo albo. 



The black Fissurella. SheU oblong-ovate, slightly 

 attenuated anteriorly, depressed, a little compressed 

 at the sides, radiately ribbed and ridged, ribs and 

 ridges rugose, rather shai-p, latticed with concentric 

 strife, orifice oblong ; purple-black, edge of the orifice 

 white. 



Philippi, Abbild. und Besch. Fissurella, pi. 3. f 2. 



Hab. Southern Chib. 



The colouring becomes shghtlv mottled at the basal 

 edge. 



