NO. 2288. NEW MOLLUSKS OF THE FAMILY TURRITIDAE—DALL. 39 



Range. — Station 4309, off Point Loma, California, in 78 fathoms, 

 sand, U. S. Bureau of Fisheries. 



BORSONELLA NICOLI, new species. 



Plate 12, fig. 1. 



Shell solid, white, covered with a pale straw-colored periostracum, 

 of eight whorls exclusive of the (lost) nucleus, the suture distinct 

 with a slightly swollen margin; axial sculpture of (on the penulti- 

 mate whorl about nine) nodular ribs, peripheral on the spire, becom- 

 ing obsolete on the last whorl, beginning in front of the fasciole and 

 obscure beyond the periphery ; spiral sculpture of fine striae, visible 

 only in occasional spots, the fasciole somewhat constricted; beside 

 this there are faint traces of vermicular sculpture visible under a 

 glass, reminiscent of the sculpture in B. harbarensis ; aperture nar- 

 row, anal sulcus moderately deep, outer lip thin, arcuate, body and 

 pillar smooth, the plait hidden behind the columella which is at- 

 tenuate in front, canal short and wide. Height of shell, 22 ; of last 

 whorl, 13 ; diameter, 8 mm. Cat. No. 198925, U.S.N.M. 



Range. — Southwest of San Nicolas Island, California, in 158 

 fathoms. U. S. Bureau of Fisheries Steamer Albatross. 



BORSONELLA RHODOPE, new species. 



Plate 12, fig. 3. 



Shell with seven or more whorls exclusive of the (lost) nucleus, 

 white covered with a pale olivaceous periostracum, suture distinct, 

 not appressed ; axial sculpture of rather strong irregular incremental 

 lines; spiral sculpture of a thickened band between the suture and 

 the somewhat constricted anal fasciole ; at the shoulder a blunt angu- 

 lation, in front of which are two obscure threads followed by a more 

 distinct thread on which the suture is laid ; on the last whorl in front 

 of the angulation are about 18 threads growing smaller and more 

 close-set anteriorly; there is no siphonal fasciole; aperture rather 

 narrow, anal sulcus shallow rounded, outer lip thin, arcuate, sharp ; 

 inner lip erased, pillar straight, obliquely attenuated in fi'ont; canal 

 rather wide, not recurved. Height of shell, 19; of last whorl, 11; 

 diameter, 7 mm. Cat. No. 212361, U.S.N.M. 



Range. — Station 2953, off Santa Rosa Island, California, in 82 

 fathoms, gray sand and broken shell. U. S. Bureau of Fisheries. 



Genus LORA Gistel. 



Since the name Bela (Leach MS.) Gray, 1847, has been shown to 

 be synonymous with Mangelia Eisso, having the same type, the ques- 

 tion arises what name shall be adopted in its place? The name 

 PleuTotoTfdna was proposed by Gray in 1838^ as a group name, 



1 Ann. Nat. Hist, vol. 1, p. 28, 1838. 



