1920.] NATURAL SCIENCES OF PHILADELPHIA. 319 



foliations stands at the front leases of the large processes. The 

 aperture is small, oval. The long anterior canal is nearly or quite 

 closed. 



Length 31, diameter, including spines 18.5 mm. Type, fig. 29. 



Length 40, diameter, including spines, 30 mm. 



The operculum is Purpuroid, the nucleus lateral. It has external 

 sculpture of concentric laminae, which are prominent and crimped 

 in the outer and basal parts, subobsolete in the median and inner 

 portions, which are nearly smooth, or merely wrinkled. 



Compared with M. rota Sowb., this species differs by having 

 fewer enlarged spines. M. rota has four or five subequal ones on 

 the last varix, of which at least three radiate from the aperture like 

 the spokes of a wheel, and one is on the canal. In M. pele there are 

 only two enlarged processes. Other characters of the two species 

 appear to be much aUke, though in the old specimens of M. rota, 

 which alone are at hand for comparison, the whorls of the spire are 

 worn, and the earlier ones lost. It attains a greater size than the 

 Hawaiian species. 



The largest individual of M. pele found (PI. XII fig. 30) is evidently 

 quite, old. It is much encrusted. The quite clean one selected for 

 description (fig. 29) is probably nearly a whorl short of full size. 



Murex torrefactus insulanun n. subsp. 



Specimens from off Waikiki, Oahu, in 35-50 fms. (Langford), 

 differ from the typical form of M. torrejacius Sowb., being relatively 

 larger, with somewhat less complex variceal processes, the second 

 from above nearly as long as the first and receding. M. rubigifiosvs 

 Reeve has a larger aperture, and the second variceal process does 

 not recede. 



Length 69, diameter 44 mm. 



Sistrum vitiense n. sp. 



Viti Islands, A. J. Garrett. Type and paratypes no. 3G732 A. N. 

 S. P. 



The shell is stout, ovately fusiform, solid, with straightly conic 

 spire. The ground color is buff-yellow. It is rather weakly pli- 

 cate longitudinally, with about seven low spiral cords, which are 

 enlarged to form oblong tubercles, from hazel to chestnut-brown in 

 color where they pass over the folds. The tubercles of the series 

 below the suture are lower than the others and separated from the 

 next series by a wider space. Between the tuberculose girdles there 



