smith: on the genus vanikoro. Ill 



will separate them, and I was at one time inclined to think that there 

 must be some mistake in the localities assigned to V. granulosa. 

 N. sulcata is undoubtedly West Indian. Tryon also united V. clathrata 

 and ffranulosa, and respecting F. sulcata observes, " onlj^ distinguished 

 from forms of the last species \^clathrata~\ by locality." D'Orbigny's 

 figure of sulcata is a very poor one, and coloured pale purplish, 

 although he correctly describes the shell as " blanc uniforme." The 

 shell he figures (fig. 28) as the young of this species has, in my 

 opinion, nothing to do with it, but represents a species of the genus 

 Fossarus. The spiral whorl of sulcata is smooth and convex, and 

 the following ones are coarsely cancellated. Tryon has reproduced 

 D'Orbigny's figure, and appears to have followed that author in 

 considering it the very young of the present species. 



In vol. ix of his Manual, pi. lii, fig. 6, he again reproduces the 

 same figure of D'Orbigny's under the name of Fossarus Orlignyi 

 of Fischer. The latter author gave this name to the fig. 28 on 

 pi. xvii of D'Orbigny's work, recognizing that the shell there 

 depicted was distinct from that represented by figs. 26 and 27 on 

 the same plate. 



V. Cumingiana, Recluz, and V. semiplicata, Pease, are not 

 synonymous with V. clathrata, as suggested by Tryon, but quite 

 distinct, and Narica anomala, C. B. Adams, which he thought was 

 probably the same as V. sulcata, is the well-known type of the genus 

 Isafis, H. & A, Adams. 



In vol. ix of his Manual, p. 273, he cites this form under Isapis 

 among the " unfigured " species. If he had looked at the original 

 description of the genus, ^ he would have found that it was the only 

 species quoted, and that a very good figure was given by the authors. 

 More remarkable still is the fact that four years previously he had 

 reproduced this figure in his " Structural and Systematic Conchology," 

 vol. ii, pi. Ixix, fig. 41. 



16. Vanikoro granifera (Pease). 



Narica granifera, Pease : Amer, Journ. Conch., vol. v, p. 78, pi. viii, 



fig. 13 (1869). 

 Vanikoro granifera, Tryon: p. 69, fig. 77 (copy of Pease, as synonym 

 of clathrata). 

 Hah. — Jarvis Island, Polynesia. 



In the figure of this species there is little trace of an umbilicus, 

 although described by the author as " umbilico patulo." It must be 

 very near clathrata (= sulcata) as suggested bj'^ Tryon. 



17. Yanikoro solida, Sowerby. P.M. 



Vanikoro solida, Sowerby : Conch. Icon., fig. 20 ; Thes. Conch., p. 168, 

 fig. 1 ; Tryon, p. 70, fig. 88 (copy of Thesaurus). 

 Hab.— ? Type in P.M. 



II. & A. Adams, Geuera Eeceut Moll., vol. i, p. 320, pi. xxxiii, fig-. 8. 



