Zoological Illustrations, Second Series, Volume 2 / or, Original Figures and Descriptions of New, Rare, or Interesting Animals

by William Swainson

Bat Volute.

Family Volutidæ. Sub-family Volutinæ. Nob.

Generic Character.

Shell armed with spinous tubercles, sometimes smooth but never ribbed; spiral whorls gradually diminishing in size, but not distorted; the apix thick and obtuse; pillar with four plaits.

Types of Form.—1. Marmorata. Broderpia. Sw. (Cymbiola. Sow.) 2. Vespertilio. Nivosa. Rutila. Aulica. Pulchra. Pacifica. 3. Elongata (?) Gracilis. Magnifica. Tuberculata. 4. ——? 5. Lugubris.

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Specific Character.

Shell armed with spinous tubercles, pale fulvous with remote angular waved lines of brown; spiral whorls plaited; pillar with four plaits.

Voluta vespertilio. Lam. Sys. 7. 1. p. 336.