on 4: 



OO' 



BULLETIN OF THE 



the second ia merely the projection of one of the basal spirals, like those of 

 IViptychus. If this misprint is to be elevated to the dignity of a section or 

 subgenus, it should not be placed with the true Pyramidellas at all, ioT it evi- 

 dently is but distantly related to them. But among the minutiaj of the Alba- 

 tross dredgings in the Antilles I find a specimen of a genuine Longchceus with 

 strong transverse plaits or ribs across the whorls, a peripheral sulcus, and the 

 other characters as in Lonc/chceus. If this is worth distinction as a section, it 

 may take the name of Pharciddla. 



Pyramidella (Pharcidella) Folinii n. s. 



Shell small, pinkish white, eight-whorled; form much like that of P. Candida, 

 with a strong deep peripheral sulcus; the posterior margin of the sulcus with 

 a strong keel, the anterior margin lower, with a faint keel ; base rounded, 

 finely spirally striate with evident incremental rugosities; space between the 

 sutures flattish, with twenty or more strong transverse equal ribs; suture deep, 

 channelled, not crenulate; aperture quadrate, the pillar with three folds, the 

 outer lip with three internal liroe; the anterior teeth are oblique; there is a 

 chink and a strong fasciole behind the pillar ; the nucleus is lost. Max. Ion. 

 of shell, 5.0; max. lat. of shell, 2.0 mm. 



Near Barbados, in 98 fms., sand, U. S. Fish Commission. 



? Section TIBERIA Jeffreys. 

 Pyramidella nitidula A. Adams. 



Syrnola nitidula A. Adams, Ann. Mag. Nat. Hist., p. 355, 1860. 

 Pyramidella (Tiberia) nitidula Jeffreys, P. Z. S. 1884, p. 303, pi. xxvii. fig. 8. 

 Odostomia (Obeliscus) nitidulus Watson, Rep. Chall. Gastr., p. 487, 1885. 

 Pyramidella minuscula Monterosato, P. mediterranea Monterosato, Obeliscus sufarci- 

 natus Watson, and 0. tinctus Watson, yfc/e Jeffreys, loc. cit. 



Habitat. Barbados, 100 fms. Japan, A. Adams. Mediterranean, Jeftreys, 

 etc., 25 to 1095 fms. 



This shell may not belong with Pyramidella. It is very near Eulimella 

 Smithii except for the plaits on the pillar. I am in doubt whether Mr. Adams's 

 first reference was not the most correct. Still, the pillar is very like that of 

 Pyramidella. It is very widely distributed, both in area and depth. I cannot 

 see sufficient reason for referring it to Odostomia. 



Section PYRAMIDELLA s. s. 



Pyramidella dolabrata Linne. 



This beautiful and well known shell is found in Florida and the Antilles. 

 I can see no sufficient reason for separating the Antillean and Indo-Pacific 



