66 



Buu,ETin 35 



Page 82 



Phos solidulus Guppy. 

 Nassa solidula, Quart. Jotirn. Geol. Soc. vol. xxii — p. 579. 

 pi. xxvi. f. 11. 



Strombus pugiloides n. sp. 



The shell for which I propose the above appellation was 

 considered to be Strombus pugilis by Mr. Carrick Moore. 

 The name was printed fragilis in his paper in the 

 Journal of the Geological Society, vol. xix, p. 511. In my 

 papers on the tertiary fossils of Jamaica and the Westindies 

 the species was recorded under the name Str. pugilis. In 

 ordinary specimens like those usually found in Jamaica, 

 Haiti, and elsewhere, the onl}^ well-marked differences that 

 can be noticed between the fossil shell and the recent 

 Strombus pugilis are that in the former the last whorl is 

 usually devoid of the spiniform tubercles and that the shell 

 is of shorter and broader figure. But some examples 

 supplied me by my friend Mr. Vendryes exhibit an unex- 

 pected character. They show chevron-shaped bands . of 

 color, about 12 — 15 on the last whorl. Each band takes 

 the shape of a V, the apex of which occurs near the middle 

 of the whorl and forms an angle of about 30 0 pointing 

 backwards or away from the aperture. These bands of 

 color are about 2 mm. wide and the spaces between them 

 are about 3 mm. Numerous specimens of the recent Str. 

 pugilis have passed through my hands, but I have never 

 noticed the slightest approach to such a character. The 

 recent shell is pale red or pink only relieved by an indis- 

 tinct band of paler tint following the middle of the whorl. 

 A less constant difference may be found in the low rounded 

 lamellar dentition inside the outer lip which is very faint 

 or altogether wanting in Strojnbus pugilis, but more marked 

 in the fossil. 



