AVICULA. 



Plate II. 



Species 2 (Mus. Cuming.) 



AvicULA MACROPTERA. Avic. testd longUudinaliter mb- 

 quadrato-ohlonyd, obliqnd, plus minus gibbosd, fusco- 

 nigricante, soUde corned, pallide radiatd, sgitamulis 

 fuscis minute ctuipidatis verms tnarginem plus minus 

 indtttd; superne dense incequiMerali, extremitate an- 

 ticu in alam angustam Imgissimam prodnctd. 



The long-winged Avicula. Shell longitudinally some- 

 what squarely oblong, oblique, more or less gibbous, 

 brown-black, solidly horny, faintly rayed, more or 

 less covered towards the margin with minutely cus- 

 pidate brown scales ; very inequilateral at the upper 



part, anterior extremity produced into a ver\- long 



nai'row wing. 

 Lamaeck, Anim. sans vert. vol. vii. p. 97. 

 Ilab. Moluccas. 



This fine species, besides being distinguished by the 

 long narrow winged prolongation of the anterior side, is 

 peculiarly rayed with pale longitudinal bands, showing 

 the places where minute cuspidate scales have been at- 

 tached. In well-preserved specimens these minute scales, 

 having the edges finely curled, cluster very densely about 

 the margin and in the arched hollow between the body 

 of the shell and the wing. 



