KUNGL. SV. VET. AKADEMIENS HANDLINGAR. BAND 48, N:o 1. 13 
Shell usually somewhat depressed, aperture broader than high: sculpture con- 
2 | 
sisting of fine radiating ribs and very close spiral strige; colour white; epidermis pale 
brownish. H. (of the type) 1.7, D. 2.5 mm; whorls 4; height of aperture = twice 
the spire (FORBES & HANLEY 1853) Sc. crispata FLEMING 1832. 
Shell less depressed; whorls more flattened above; body-whorl therefore more 
angulated; aperture = 3 the spire; H. 4.2, D. 5 mm; whorls 4 ?/. 
var. angulata LovÉnN 1846. 
Pl. 2 figs. 26—27. 
Shell higher than in the type; whorls more convex; body-whorl well rounded; 
radiating ribs fewer; H. 2.3; D. 2.7; aperture 1.3 mm; whorls 4 
var. aspera PHILIPPI 1844 (= var. paucicostata JEFFREYS 1865). 
PI9:2: fp 
Fam. Fissurellide. 
Apex of the shell persistent, inclined backwards, or replaced by the anal slit 
and in this case furnished inside with a septum or callus; rhachian tooth of the 
radula broader than the uncini (subfam. Emarginulin2e). 
I. Anal slit above the anterior margin; apex central or nearly so. 
A. Anal slit apical, situated before the middle of the shell, bounded inside all around with a callus, 
but without septum Glyphis CARPENTER 1856 
(= Fissurella BruGuvikrRE 1792 pro parte). 
B. Shell internally with a septum below the hinder part of the anal slit. 
1. Apex persistent, bent backward; anal slit preapical 
Puncturella LowE 1827. 
2. Anal slit apical and central Fissurisepta SEGUENZA 1862. 
II. Anal slit in the anterior margin; shell without internal septum; apex persistent 
Emarginula LAMARCK 1801. 
III. No anal slit; shell with an internal septum as in Puncturella; apex persistent; 
radula aberrant, agreeing with Lepeta, 2.0.1.0.2, with tricuspidate rhachian 
tooth and serrated uncini; eyes absent (systematical position uncertain) 
Propilidium FORBES & HANLEY 1849. 
Glyphis CARPENTER 1856. 
Shell depressed oval, with coarse and dense radiating ribs of alternating strength and concentric strixe. 
Colour yellowish or brownish, sometimes with darker reddish rays. =&L. circa 26, Br. 18, H. 8—11 mm (England) 
G. greca (LINNÉ 1758). 
Puneturella LowE 1827. 
Shell more or less conic, with straight or arcuated anterior slope; apex poste- 
rior or subcentral; sculpture consisting of radiating riblets of alternating strength 
and concentric fine lines of growth; colour whitish. &L. 7—13 mm 
P:' noachina (LINNE 1771). 
Pl. 2 figs. 28—241. 
