VOL. 



89^'] lVKO('I':EJ)INtlS OF THE NATIONAL MUSEUM. 391 



Shell siiiall, r:itli('r solid, acutely ovate.^ s])ire elevated, poiiitecl, wlioiLs 

 six to seven, inodcrati'ly convex, with iiicoiis^jicuoiis levolviiii;- j^rooves, 

 more distinct on the lower part of the body whorl; uijper whorls del- 

 ictitely sculptured with close-set, rounded, longitudinal ribs, A]wx 

 obtuse. Aperture nearly half the length of the shell. Outer li^) 

 somewhat thickened, with liv<> lo scncu denticles on tiu' inner side. 

 (/Olumella, with ji single rather prominent plait <m- tubercle, just below 

 the middle. Surliice colored by live to six brownish I'cd bands, alter- 

 nating with as nuuiy white ones, on the body \\ hoil. 



Dimensions: Length, (I.Oli; length <»f aperture, ."); breadth, L'.7r> uul- 

 limeters. 



The above description is based on a single IVesh perfect. s[)ecimen 

 in the Habellot (122013); the others arc so much rubbed as to be of 

 little diagnostic vahie. All show the tubercle on tlie columella. It is 

 not unlikely that in a number of fresli specimens considerable color 

 variation would be exhibited. The speciinou described is beautifully 

 and consj)icuously banded or striped. The above is nearer to C'ariMMi- 

 ter's NiiideUa mUlepunctata than to any other west coast Ibrm with 

 which 1 am familiar. In comparison with the most i>erfect adult of the 

 latter, from Cape St. Lucas (Mus. No. 4147), certain similarities and 

 differences are perceptible. The interior crenulation of the outer lip, 

 the h>ngitudinal plication of the upper wliorls, and the sculpture 

 striatiou of tlie lower [)art of the basal whorl are nearly or quit(^ alike 

 in both. The dilferences are seen in the more elongated form of miUe- 

 pKHctdtd, the greater convexity of the whorls, the mon^ luonounced 

 sutural delinition, and the strong tubercle on the columella. The color 

 marking of mille punctata is indicated by the specilic name, and the 

 general tone of the surface is yellowish. 



This may i)ossibly be "24 ? sp." of Wimmer's list from IJindloe 

 Island, which he refers to Amycla and compares with a vara Say. It is 

 often not easy to deteiininc to which of tlu^ groups of the Columbellidw 

 some of the forms should be assigned. 



Family MURICID.l]. 



Subfamily Murk^invK. 



CJeiHis MUREX Liiinc. 



SubKCims PHYLLONOTUS Swainsoii. 



59. Muiex (Phyllonotus) princeps Hnxl. 



Beach shells in various conditions, 

 -lames and Clnirlcs islands, common; also less numerous on Indefat- 

 igable Island. Freouently of large size and often quite solid and heavy. 



