A V I C U L A 



Species 57- (Mus. Cuming.) 



Aticula ckocea. Avic. testa subanguste obliqud, con- 

 vexd, lavigatd, striis dmplicibm increnienti, aid lon- 

 ffissimd, gracili ; vivide croceo-miniatd, fasciis casta- 

 neis angttstis radiatd. 



The saffron Avicula. Shell rather narrowly oblique, 

 convex, smooth, with simple strise of growth, wing 

 very long and slender ; bright saffron-red, rayed with 

 narrow chestnut bands. 



Chemnitz, Conch. Cab. vol. xi. pi. 205. f. 2023, 2026. 

 Avicnla Chmensis, Leach. 



HaA. Island of Mindoro, Philippines ; Cuming. 



Conspicuously distinguished by its bright saffron-red 



colour and very long slender wing. 



Species 58. (Mus. Cuming.) 



Avicula marmokata. Avic. tesid oblique mbquadratd, 

 margaritaced, epidermide tenui decidud indv.td, concen- 

 trice striatd, purpureo-rnfo utidique midato-marmo- 

 ratd, intemiore rvfd versus marginem, obscure pallide 

 radiatd, aid latiusculd. 



The mottled Avicula. Shell obliquely somewhat 

 square, pearly, covered with a thin deciduous epider- 

 mis, concentrically striated, mottled throughout with 

 waved purple-red, towards the margin darker red, 

 obscurely light-rayed, wing rather broad. 

 Broadly winged, of a solid pearly texture, covered with 



a rather thin epidermis, painted with a mottled character, 

 which becomes more and more obsolete towards the 

 margin. 



Species 59. (Mus. Cuming.) 

 Avicula spectruji. Avic. lestd perobUqud, convexius- 

 culd, sithnmrgaritaced, epidermide pallide spadiced, in 

 striis concentrieis serratis iiidittd, aid suhproductd. 

 The ghost Avicula. Shell very oblique, rather convex, 

 somewhat pearly, covered with a light-drab epider- 

 mis, arranged in concentric striaj, serrated at the 

 edge, wing rather produced. 

 Hah. Island of Mindoro, Philippines ; Cuming. 



Very oblique in form, and of a pale, ghastly drab- 

 colour. 



Species 60. (Mus. Cuming.) 

 Avicula porjcosa. Avic. tesid oblongo-ovatd, convexd, 

 ; solidiusculd, lavigatd, intense ru/d, livido-purpureo 



I tinctd, concentrice sulcato-striatd, aid latiusculd, vix 



I sinuatd. 



The handsome Avicula. Shell oblong-ovate, convex, 

 rather soUd, smooth, dark-red, tinged with Uvid- 

 purple, concentrically groove-striated, wing rather 

 broad, scarcely sinuated. 



ffab. ? 



This fine species is allied to A. Iteteroptera, but the 

 wing is less elongated, and it differs in form. 



June, 1857. 



