216 PHOS. 



I am compelled to refer to this form a considerable number of 

 species which do not appear to me to have distinctive characters : 

 I have figured them all, however, and those who suppose that I 

 am too conservative, will be able thereby to form their own con- 

 clusions. P. muricatulus, Gould (fig. 484), from Japan; P. an- 

 gulatus, Sowb. (fig. 485), Philippine Isles ; P. scalaroides, A. Ad. 

 (fig. 486), habitat unknown ; P. filosus, A, Ad. (fig. 487), habitat 

 unknown ; Ph. ligatus, A. Ad. (fig. 488). habitat unknown ; P. 

 plicatus, A. Ad. (fig. 489), from Eastern Seas ; P. rufofasciatu*. 

 A. Ad. (fig. 490), Philippines; P. fasciatus, A. Ad. (fig. 575), 

 Philippines; P. textilis, A. Ad. (figs. 492, 493). Philippines; 

 P. nodicostatus, A. Ad. (fig. 506), Philippines. 



PH. ADAMSI, Petit. PL 83, fig. 491. 



Whitish, obscurely fasciated with brown ; regularly cancellated, 

 and prickly nodose. Length, 1 inch. 



Habitat unknown. 



This appears to be less pyramidal in form, and differs also from 

 senticosus in its equally prominent longitudinal and revolving 

 sculpture ; still, it may be only a variety. It was described by 

 A. Adams as P. cancellatus, which name being preoccupied, 

 Petit changed it to Ph. Adamsi. 



P. PLICOSUS, Bunker. PI. 83, tigs. 523, 522, 524. 



Ribs rather distant, tubercled at the shoulder of the whorls, 

 encircled by close, sharp revolving stri;e; white, middle of outer 

 lip and base of shell chestnut-brown. Length, 1*2 inches. 



Cape of Good Hope. 



The type is b:tdly figured (tig. 523), yet the description identi- 

 fies it with the subsequently published P. speciosas. A. Ad. (fig. 

 524) and P. Morrlssii, I) linker (fig. 522 j. The ribs are somewhat 

 closer and the shoulder angle not so marked as in P. pallidus, 

 the revolving strite are inuch finer, and the chestnut coloring 

 appears to be a constant distinctive character. 



PH. CYLLENOIDES, A. Ad. PL 83, fig. 497. 



Light yellowish brown, with ash-colored revolving bands 



crossing the ribs. Length, '5 inch. 



Philippines. 



Distinguished by its short, angulated form, few and prominent 

 ribs, wide shoulder, etc. 



