CYLICHNA. 293 



Brown, but Brown's Bulla striata is preoccupied by ]>ull<i xtriata 

 Bruguiere. 



It may be that C. occulta is distinct from scafpta, as Leche claims, 

 and Krause agrees ; but my material is not sufficient to show the 

 distinction. 



C. RICHARDI Dautzenberg. PI. 29, figs. 4, 5, 6, 7. 



Shell If mill, high, 3 mill, wide ; rather solid, convoluted, ovate- 

 cylindrical, the apex mamillated. Last whorl sculptured with 

 spaced series of little, round impressed pits. Aperture narrow above, 

 dilated and rounded below, as long as the shell. Columella straight, 

 thickened ; lip acute, subarcuate ; color dull white. (Dautz.'). 



Pico, Azores, 1287 meters. 



Cylichna richardi DAUTZ., Res. Camp. Sci. Albert I, i, p. 23, pi. 



C. PARVULA Jeffreys. PI. 59, figs. 4, 5. 



Shell forming a short cylinder, rather solid for its minute size, 

 semitransparent, and glossy: sculpture, numerous and very fine 

 wavy lines of growth ; the crown or apex is encircled by a thickened 

 riblet or ridge ; half-grown, and especially young specimens ex- 

 hibit a sunken spire of one or two Avhorls with a globular nucleus ; 

 colour clear white ; mouth contracted above and in the middle, wide 

 and rounded below ; outer lip curved at each end, slightly project- 

 ing beyond the crown ; apex perforated ; pillar short, flexuous, 

 notched at the base. Length O06, breadth 003 inch. (Je/r.'). 



Of Crete, 70-120 fms. (Spratt). 



Cylichna parvula JEFFR., Ann. Mag. N. H. (5), xi, 1883, p. 400,, 

 pi. 16, f. 9. Cryptaxis parvula MONTS., Nom. Gen. e Spec., p. 144^ 



This is perhaps the type of a distinct genus between Cylichna and 

 Utriculus, which may be called Cryptaxis, because the spire is partly 

 concealed. A little Madeiran shell, discovered by the Rev. Robert 

 Boog Watson, and named by him Utriculus tornatus or U. spretus, 

 somewhat resembles the present species, but is much larger and 

 oval ; and the spire is more visible, although sunken and partly con- 

 cealed. (Jeffr.'). 



C. CREBRIPUNCTATA Jeffreys. PL 27, figs. 2, 3, 4, 



Shell oval, thin, semitransparent and glossy; sculpture, very 

 numerous and regular fine spiral or revolving striae, which are 

 20 



