2 THE NAUTILUS. 



ulate, slightly shouldered, the last detached and descending, strongly 

 carinated at the base, carina continued to the hack of the aperture; 

 striae very strong and compact, irregularly spaced and waved here 

 and there, some crossing over the sutures from one whorl to the 

 other ; aperture as in inusitata, lint less elliptical, well produced be- 

 yond the penult whorl. Height, 15 mm.; greatest breadth, 3 mm.; 

 aperture, 2t? mm. high. '2\ mm. wide. 



I am indebted for specimens of this shell to Mr. Hart, at one time 

 Superintendent of Public Gardens and Plantations in Jamaica, and 

 now occupying a similar position in Trinidad, by whom they were 

 collected at the government cinchona plantations in the mountains 

 of Saint Andrew, about 0,500 feet above sea level. 



One of the specimens being alive, I obtained the radula, but failed 

 in securing the buccal plate. The teeth are of the type common to 

 MM. Crosse & Fischer's first group A. of Cylindrellaa. The animal 

 is very small in proportion to the shell. It is spiral behind the man- 

 tle, short, of a pearly-white color, slightly mixed with green, and 

 marked with close-waved, narrow, longitudinal brown lines, not ex- 

 tending to the lapping of the foot; head short, with a simple labial 

 appendage, apparently incapable of much projection ; eye peduncles 

 short, slender, of a deep bistre color, except on the lips, where the 

 color is like that of the body; eyes very black, placed on the bulb- 

 shaped tips of the peduncles; tentacles short and very slender; foot 

 broad and lance-shaped behind. The animal is very active for a 

 Cylindrella. P progresses by extending forward the forepart of the 

 foot and drawing the afterpart up to it in a sort of wave. Part of 

 the shell drags lightly on the ground and is carried forward with 

 each fresh advance of the foot. 



Cylindrella (Anoma) propinqy,a Vendryes. PI. 1, figs. 7, 8. 



Shell rimate, cylindrical, nearly white, under a light brown epi- 

 dermis, which becomes paler towards the apex; the spire widens very 

 gently from the base of the penult whorl to about one-third above it, 

 where the greatest diameter is reached, and thence it tapers to the 

 truncate apex ; apex truncate with the loss of 8 to 9 whorls, whorls 

 remaining 10, less deep and less flattened than on IJujikrriana, the 

 first two above the base subangular about the periphery, the last more 

 strongly carinated than in Dunkeriana, with the carina continued 

 down to the base of the aperture; striaj very strong, compact and 



