352 REPORT ON ALBATROSS MOLLUSCA DALL. 



I am aware that this examination does not agree in all respects with 

 the account of Dr. Pelseneer in the Challenger Report on the Anatomy 

 of Mollusks, but that account appears to have been somewhat hastily 

 prepared, while the figure of the animal is evidently a diagram and not 

 a portrait. There is, of course, a possibility that some error of identi- 

 fication may have occurred, and that the animal sent to Dr. Pelseneer 

 was not that of the 8. infundibulum. The specimen here described has 

 been compared with the original type of infundibulum, and I suppose 

 there can be no question as to its absolute ldeutity specifically. 



Solariella amabilis Jeffreys. 



Collected at Station 2754, east from Tobago, iu 880 fathoms, ooze. 



Solariella clavata Watson. 



With the preceding species, and also at Station 2751, in 687 fathoms, 

 ooze, south of St. Kitts. 



Solariella oxybasis sp. nov. 

 Plate xn, Fig. f>. 



Shell closely related to S. Ottoi, var. regalis V. & S., from which it 

 differs most obviously by its more acute and elevated spire, smaller 

 umbilicus, angular periphery, and aperture angulated in front by the 

 juncture of the pillar with the end of the umbilical carina; shell thin, 

 pearly, with a pale, thin epidermis and six (or more) whorls without 

 the nucleus; nucleus lost; spire acute, the last whorl enlarging dispro- 

 portionately; spiral sculpture of, on the spire, three revolving threads, 

 the most anterior strongest and peripheral, the middle one least evi- 

 dent; the base has six subequal, strong, granular threads and two 

 smaller ones, the latter just within the umbilicus; transverse sculpture 

 of, on the' last whorl, about eighteen sharp radii, exteudiug to the 

 periphery and forming sharp nodules at the intersections of the spi- 

 rals; the nodules on the peripheral spiral are the most prominent and 

 are almost spinose on the last whorl; beside this the whole shell is 

 covered with a fine, silky, transverse, slightly irregular striatiou; su- 

 ture distinct, running on the first basal spiral, not channeled ; umbilicus 

 very narrow, its margin subangnlose; aperture quadrate, subangnlate, 

 at the periphery, in front, behind, and at the junction of the pillar with 

 thebody ; body with a wash of pearl ; margin continuous with the pillar; 

 sharp, thin, reflecting the sculpture; pillar slightly arched, thiu, re- 

 flected a little behind; base full and rouuded, produced iu the middle 

 near the umbilicus; altitude 13.5 ; maximum diameter 12.5; minimum 

 diameter 10 mm . 



Hab. — Station 2839, iu 414 fathoms, sand, off the Santa Barbara 

 Islands, California. 



The soft parts recall those of & Ottoi Phil. This species belongs to 

 the group represented by 8. Ottoi, 8. infundibulum , etc., but seems dif- 



