FISSURELLA 



ijpecies 116. (Mus. Cumiug.) 



FisstBELLA OCTAGOXA. Fiss. testd ovatd, elevatimciild, 

 octocusliitu, Uris parvls, iiuuute (/raimloik in inlenli- 

 liis, or/Jicio ovato, lat'mscnlo, a/dice incUnato ; albidd, 

 jyidiis lath fuscescentihus prope marginem, circa ori- 

 Jicium caruhncevte . 



The octagon Fissukella. Shell ovate, rather elevated, 

 eight-ribbed, with small minutely granulated ridges 

 in the interstices, orifice ovate, rather broad, inclined 

 anteriorly ; wliitish, with broad light-brown rays 

 near the margin, bluish around the orifice. 



Ilab. Island of Ticao, riiilippincs (on dead sliells) ; 

 Cuming. 



As in several other species of this genus, the posterior 

 ribs are rather more prominent than the anterior. 



Speries 117. (Mus. Cuminn-.) 



FlSSVKELLA NIGRO-OCELLATA. Fixx. (I'Std Oimtd, c'lc- 

 rat/i/sciild, radiatini et coiicodrio' furlilt'i- ajsfald, 

 cosfh snhdisiantibus, interstitiin di'iisii-liillinilis, orijkio 

 orhinilari ; alhd, maculis niyrh proiiv i.Kinjhinu seria- 

 Ihn. pictd. 



The BLACK-EYED FissURELLA. Shell ovato, rather 

 elevated, strongly radiately and concentrically ribbed, 

 ribs rather distant, interstices thickly latticed, orifice 

 orbicular ; white, painted with a row of black spots 

 near the margin. 



Hah. Island of Ticao, Fhilippines (dredged from the 

 depth of six fathoms) ; Cuming. 



Characterized by a black spot in the interstice between 

 each rib nest the margin. 



Species 118. (Fig. 1 18, 119 «, 119 h, 119 c, Mus. Cuming.) 



FissuRELLA GiBBEKULA. Fiss. testd uvutd, siibcomcd, 

 (intice inclinatd, radiatim costatd, costis subanr/iiHis, 

 coiifcrtis, interstitiis subprofande clatliratis, orificio 

 pnno ; albidd, aut nigra a.ut viridi varlegatd. 



The slightly gibbous Fissurella. Shell ovate, snb- 

 conical, inclined anteriorly, radiately ribbed, ribs 

 rather narrow, close-set, interstices rather deeply 



latticed, orifice small ; whitish, variegated with black 



or green. 

 Hab. Mediterranean. 



The painting of this species appears to vary from 

 black to dark olive-green, and the latticed sculpture is 

 more strongly developed in some specimens than in 

 others. 



Species 130. (Mus. Metcalfe.) 

 Fissurella mls. T'/s.v. le>ild ui-uli!, diil'nv Md)iitti-iii(ntd, 



lateriblis sid/i-ihi/jn-rsMi, luiUrr i;ihli' lucrnialii, radia- 

 thti creherriiiir Iniiiilinild, siriis cuiicfii/rieis deiiw 

 decusmtd, orificio oblongo, laleribus medio cccavatis ; 

 albidd, cinereo-nigricante profuse et irregnlariter 

 radiatd. 



The mouse Fissurella. Shell ovate, somewhat atte- 

 nuated anteriorly, rather compressed at the sides, 

 much inclined anteriorly, radiately very closely 

 finely ridged, thickly decussated vnt\\ concentric 

 stria;, orifice oblong, sides excavated in the middle ; 

 w^hitish, profusely and irren'nlarly rayed with ash- 

 black. 



Ilab. ? 



The closeness of the sculpture as above describeil gives 

 to this species an elaborately granulateil aspect. 



Species 121. (Fig. a, Mus. Jletcalfe ; Fig. b, 

 Mus. Cuming.) 



Fissurella gejimulata. Fiss. testd oblongo-ovatd, 

 aiitice inclinatd, liris tenuibus nodulosis undique con- 

 fertim radiatd, orifcio oblongo-ovato, panitisculo, 

 laieribns medio excavutis ; albd, caruleo-iiigricai/tc 

 pecitliariter 9-adiatd. 



The beaded Fissurella. Shell oblong-ovate, in- 

 clined anteriorly, closely rayed throughout with 

 fine nodulous ridges, orifice oblong-ovate, rather 

 small, sides excavated in the middle ; white, pecu- 

 liarly rayed with blue-black. 



Fisi-nri'lla viimla, Sowerl>y (not of Ijaniarek). 



IM. •? 



I name this shell anew on the testimony of M. Deshayes 



(Anim. saus vert. vol. vii. p. .')'.)9, note), that it is not 



