AUHICLrLiD^:. 43 



Pythia exigua, Beck, Ind. p. 104. n. 6. 



Auricula exigua, Lowe in Proe. Z. S. 1854, p. 218. 



Hab. Porto San Lorenzo, Madeira. 



65. Melamptts concinntts. 



Shell ellipsoidal, blackish-brown, paler on the convexity of 

 the last whorl, with a yellowish-white spiral band on the last 

 whorl issuing from beneath the suture, with the plaits and 

 callus in the aperture white, smooth and shining ; apex acute ; 

 spire with very curvilinear outlines ; whorls five, convex, ini- 

 bricately appressed, with the suture moderately impressed ; last 

 whorl long ; aperture narrow, and very acute above, much con- 

 tracted by the plaits ; labrum sharp, in the lower part much 

 thickened within by a broad thick deposit ; plaits three, of 

 which the lower one is very oblique, and the upper one very 

 large, concave on the lower side, and on the upper side extended 

 to the apex of the aperture bv a transversely ridged surface. 

 Length 0-32, breadth 0-2 inch. (Adams.) 



Auricula concinna, C. B. Adams in Ann. Lye. N. York, v. p. 432, 



542. 

 Ophicardelus (Laimodonta) concinna, H and A. Adams in Proe. 



Z. S. 1854, p. 34. n. 5. 

 Melampus concinnus, Pfr. Syn. Auric, n. 59 ; Mon. Auric, p. 57. 

 Pedipes concinnus, H and A. Adams, Gen. rec. Moll. ii. p. 249 ? 



Hab. Near Panama. 



Species not sufficiently knoion. 



66. Melampus sciuri. 



Shell ovate, smooth, brown, or very often reddish-yellow, 

 with two black bands on the extremities of the last whorl ; 

 spire very short, conical, generally chestnut-coloured ; last 

 whorl large, ventricose, furrowed anteriorly by stria? of growth ; 

 aperfure narrow, rounded in front, bluish-white within, modi- 

 fied by three plaits, one (which is obsolete sometimes) on the 

 body of the penultimate whorl, two on the columella ; peri- 

 stome chestnut-coloured, rather simple, furnished within with 

 about eight regular small teeth. Length 12, breadth 6 mill. 

 (Lesson.) 



Auricula (Conovulus) sciuri, Lesson, Voy. Coquille, p. 340. n. 85. 

 Melampus sciuri, Beck, Ind. p. 106. n. 4. 

 Pfr. Mon. Auric, p. 57. 



Hab. Port Praslin, New Ireland. 



