100 BULLETIN OF THE 



tiire, none beside the delicate lines of j^'rowth, which are perceptible chiefly at 

 or near the tips ; spiral sculpture consisting of some twenty-five sharp, strong, 

 channelled, clear-cut grooves, not punctate or in any way irregular, except that 

 they are more crowded near the summit tlian elsewhere, about half being 

 within the posterior third of the shell ; between these, near the extremities, 

 and near the margin of the outer lip, are a few more delicate intercalary 

 grooves ; posterior apex a minute pit, punctured in the centre, from which 

 the free margin rises, extends backward somewhat more than half a millime- 

 ter, then downward, forward almost in a straight line, then with a wide sweep 

 up and around to join the slightly thickened margin of the body, into which it 

 passes imperceptibly; body with a light wash of callus ; axis coiled so as to be 

 pervious to the summit when viewed from iu front. Lon. of shell and aper- 

 ture, 8.75. Max hit. of body, 2.5 ; of entire shell, 4.25; of aperture, 3.25 ; 

 min. hit. of aperture, 0.75 mm. 



Off Sombrero Island in 72 fathoms. 



It is possible that this will prove to be a Philine when the animal is known, 

 but the form and aspect are those of a Scaphander. In general outline it recalls 

 S. lignarius L., though more slender, more attenuated and pointed behind and 

 with the free margin more produced posteriorly. In the former characters it 

 resembles Philine Loveni Malm, as figured by G. 0. Sars, but is still more 

 pointed behind, and the free margin is of quite a different shape. 



This is a remarkably elegant and characteristic species, and is named in 

 honor of my friend, Mr. R. Boog- Watson, who is working up the MoUusca 

 of the Challenger Expedition. 



Utriculus (?) vortex n. s. 



Shell stout, rather solid, opaque white, short, the posterior fourth bevelled 

 off toward the bluntly rounded summit ; transverse sculpture consisting of 

 occasional faint lines of growth, nowhere very prominent ; spiral sculpture 

 consisting of very numerous fine grooves, so crowded near the ends of the shell 

 as to be but little narrower than the interspaces ; these grooves are only visible 

 under a lens, are occasionally reticulated bj' the lines of growth and gradually 

 become more distant toward the middle of the shell ; just in advance of the 

 shoulder of the bevel are a small number of equally fine raised lines, which are 

 so minute that only by the most careful inspection and under strong magnifi- 

 cation can they be distinguished from the grooves which cover the rest of the 

 shell ; the folds of the outer whorl are appressed toward the apex, with a 

 somewhat thickened and irregular margin, which leaves a minute pit at the 

 summit and about two volutions visible ; this appressed margin is often eroded, 

 and then some four or five turns can be made out ; in advance of the bevel the 

 shell is nearly cylindrical, rather suddenly rounded in front ; outer lip straight, 

 slightly produced iu the middle, but not bent inward toward the body, passing 

 imperceptibly into the column, over which, as well as over the body, is a thin 

 layer of callus ; aperture rounded and rather wide iu front, narrowing to an 



