UNIVALVES.— STROMBUS. 105 



produce many species of this genus; and the Mediterra- 

 nean, Red, and Arctic seas, only a few. 



filROMBUS^Winged or Claw-shell. 

 Division I. — Shell with linear segments, or claws at 



THE margin of THE OUTER LIP. 



Chiragra — Devil' s-claiv, Purpureus — Purple-mouth. 



Scorpius — Scorpion. Elongatus — Lengthened. 



Lambis — Spider. Truncatus — Truncated. 



Millepeda — Millepede. *Pes-pelicani — Pelican' s-foot. 



Division II. — Shell with the outer lip much ex- 

 panded. 



Family 1. — With the margin of the outer Up thickened or lobed. 



Gigas — Giant. Papilio — Butterfly. 



Accipiter — Heavy. Auris-Dianae — Diana' s-ear. 



Gallus — Plough. Pacifica — Pacific. 



Tricornis — Three-horti'd. Granulatus — Granulated. 



Pugilis — Thick-spin' d. Polyfasciatus — Many banded. 



Fasciatus — Banded. Luhuanus — Luhoe. 



Lentiginosus — Pijik-lipped. Canarium — Partridge. 



Family 2. — With the outer lip curved inwards. 

 Latissimus — Broad-winged. Laciniatus — Sinnated. 



Family 3. — Spire elevated, and outer lip rounded and short. 

 Vittatus — Ribbon. Epidromis — Mainsail. - 



Sulcatus — Sulcated. 



Family 4. — With both lips pointed, and attached to the whirls of 



the spire. 

 Marginatus — Margined. Minimus — Least. 



Accinctus — Girdled. 



Division III. — Shell smooth or plaited, outer lip 



STRIATED within, AND BUT SLIGHTLY EXPANDED. 



Gibberulus — Pouter. Urceus — Pitcher. 



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