GASTEROPODA.: 269 
spire small, prominent; aperture large, oblong, outer margin 
irregular. 
Distribution, 12 species. Java, Philippines, Torres Straits, 
Pacific. Under stones at low water. (Cuming.) 
Fossil, M. D’Orbigny refers to this genus 18 species, ranging 
from the L. Silurian to the chalk. North America, Europe. 
TEINOTIS, H. and A. Adams, 1854. 
Shell depressed, elongated, ear-shaped; spire small, and 
placed posteriorly; hinder part of the foot in the animal 
stretches far over the shell. 
Distribution, 2 species. East India. 
ScISSURELLA, D’Orbigny. 
Etymology, diminutive of scissus, slit. 
Type, S. erispata, Pl. X., Fig. 23. 
Synonyms, Anatomus, Montfort ; Woodwardia, Fischer. 
Shell minute, thin, not pearly; body-whorl large; spire 
small; surface striated; aperture rounded, with a slit in the 
margin of the outer lip; operculate. The young have no shit. 
Animal like Margarita ; tentacles long, pectinated, with the 
eyes at their base; foot with two 
pointed lappets and two long slender 
pectinated cirri on each side; oper- 
culum oyate, very thin, with an 
obscure sub-spiral nucleus. 
No part of the animal was external 
to the shell. The only living example 
occurred at Hammerfest, in 40—80 
fathoms water; when placed in a 
glass of sea-water it crawled up the 
side and scraped the glass with its 
tongue. It was pale and translucent when living, but turned 
inky black after immersion in alcohol. (Barrett, An. Nat. Hist., 
2nd ser. vol. i7, p. 206.) 
Mr. Jeffreys found S. elegans (D’Orbigny) plentifuily alive in 
sea-weed on the coast of Piedmont. It has a multi-spiral 
operculum, like Margarita. In this species, as noticed by Mr. 
G. Sowerby, the slit in the peristome of the young shell is 
converted into a foramen in the adult, as in the Jurassic 
Trochotoma. 
| Distribution, 5 species. Norway, Britain, Mediterranean. In 
Fig. 116. Scrsswrella. 4. 
