288 EEV. E. BOOGt WATSON OK THE 



5. Action amabilis, n. sp. 



St. 73. June 30, 1873. Lat. 38° 30' N., long. 31° 14' W. 

 "West of Azores. 1000 fms. Glohigerina-ooze. Bottom tem- 

 perature 39°'4. 



St. 85. Ju]y 19, 1873. Lat. 28° 42' N., long. 18° 6' W. Off 

 Palma, Canaries. 1125 fms. Volcanic sand. 



Shell. — SmaU, ovate, white, with flattened whorls, a subscalar 

 spire, a very blunt apex, a pear-shaped smallish mouth, and 

 a very slight tooth on the pillar. Sculpture. Longitudinals — 

 there are very faint hair-like lines of growth. Spirals — there are 

 on the last whorl about 20, on the penultimate whorl about 8 

 rather strong and equal furrows stippled with roundish-oval pits ; 

 they become more crowded and weaker toward the middle of the 

 base : just below the suture the first is minutely and slightly 

 beaded, and it with the next one or two is strong and crowded; 

 the flat surface which parts them is somewhat broader tban the 

 furrows. CoZowr translucent and subglossy white. ;S^/re conical, 

 high, scarcely scalar. Apex blunt and truncated ; the extreme 

 tip is very slightly inverted. Wliorls 5, very slightly shouldered 

 just below the suture : round the top there is a very slight con- 

 striction ; below this the whorl is conical, and in profile flat on the 

 sides ; the last whorl is a very little tumid with a produced base. 

 Suture very little oblique, strongish and well marked, but not 

 channelled. Mouth pear-shaped, pointed above, a little oblique 

 in direction, patulous or very slightly guttered in front of the 

 pillar-point. Outer lip straight and parallel to the axis, and a 

 little contracted above, arched and patulous in front. Inner lip 

 slightly convex on the body, on which there is a thin but distinct 

 glaze with a defined edge. There is a slight angulation at the 

 junction of the body and the pillar, near the base of which is a 

 very faint tooth amounting to no more than a slight swelling ; the 

 pillar itself is very slightly oblique, and is straight, narrow, with 

 a sharp edge, behind which is a very slight and shallow furrow. 

 H. 0-16. B. 0-1. Penultimate whorl, height 004. Mouth, 

 height 0-08, breadth 0-05. 



This species is a little like A. austrinus, "Wats. ; but compared 

 to that the form is slimmer, the whorls are more laterally com- 

 pressed and less convex, the shell is smaller, and the apex is more 

 truncated. It a good deal resembles A. levidensis, S. "Wood,but has 

 a shorter body-whorl and mouth ; the rise of the whorls in the 

 spire is more scalar, and the apex is stumpier with a coarser tip. 



