40 
Scissurella, D’Orbigny. 
Animal unknown. Operculum none. Shell very small or minute 
heliciform ; spire depressed ; aperture suborbicular, effuse ; outer lip 
with a narrow fissure or slit; umbilicus open. 
? Anatomus, Montfort. 
SciSSURELLA ANGULATA, Loven. 
Hab. Scandinavia. 
Scissurella angulata, Loven , Index Moll. Scand. p. 20. 
SciSSURELLA PLICATA, Philippi. 
Hab. Shores of the Peninsula of Thapsi. 
Scissurella plicata, Phil. En. Moll. Sicil. vol. i. p. 187, vol. ii. 
tab. 25. fig. 18. 
Scissurella d’Orbignyi, Scacchi. 
SciSSURELLLA STRIATULA, Philippi. 
Hab. Peninsula of Magnisi. 
Scissurella striatula, Phil. En. Moll. Sicil. vol. ii. p. 160. 
Scissurella decussata, D’Orbigny. 
Scissurella decussata, D’ Orbigny, Mdm. Soc. d’Hist. Nat. de Par. i. 
p. 340. 
Scissurella crispata, Fleming. 
Scissurella crispata, Fleming, Brit. An. p. 361-366. 
3. Monograph of the Genus Anatinella. 
By Arthur Adams, R.N., F.L.S. etc. 
Anatinella, Sowerby. 
Testa ovata cequivalvis, subcequilateralis , latere antico rotundato, 
postico subrostrato, subtruncato ; ligamento interno , processui 
cochleariformi affixo, dentibus duobus cardinalibus in utrdque 
, valva ante processum positis ; impressionibus muscularibus dua- 
bus, anticd oblongd, irregulari, posticd subcirculari; impres- 
sione musculari pallii integra; appendice cardinali interna 
nulla. 
Shell ovate equivalve, nearly equilateral, anterior side rounded, 
posterior slightly beaked and subtruncated. Ligament internal, fixed 
to a spoonshaped process in each valve, on the anterior side of which 
are placed two rather elongated cardinal teeth. Muscular impres¬ 
sions two, lateral, distant, the anterior oblong and irregular, the poste¬ 
rior nearly circular. Palleal impression entire, without any sinus. 
No testaceous appendage within the hinge. 
Anatinella Sibbaldii, Sowerby. A. testa solidiori, subopacd, 
IcEvi, valde concentrice corrugatd, longitudinaliter obsolete sub- 
striata ; latere postico, acuminato , subtruncato ; margine dor- 
sali postice declivi; processu cochleariformi crasso lato ; mar¬ 
gine ventrali valde arcuato. 
Hab. -? 
* 
