VERMETUS. 181 



V. DECUSSATUS, Ginelin. PI. 53, figs. 71, 72. 



Rather solid, variously twisted, solitary, laterally attached ; 

 whorls rounded, sometimes contiguous at the commencements 

 with longitudinal lirse and intermediate striae, decussated by 

 incremental striae ; yellowish white, variegated and clouded by 

 light brown. 



West Indies. 



Morch describes vars. TENUIS, INTERMEDIA, L^EVIGATA, with 

 smooth whorls, represented in part by Y. PORITES, Rouss. (fig. 

 72), all from West Indies; and vars. PHILIPPINENSIS and BADTA, 

 from the Philippine Islands. 



Y. SQUAMIGERUS, Carp. PI: 54, figs. 73, 74. 



Yellowish white, usually conglomerated, loosely twisted, 

 becoming erect, closely longitudinally costate, with intermediate 

 raised lines, scaly decussated, the erect anterior portion marked 

 by rugose incremental striae only. 



Southern California, Lower California. 



Yar. PENNATA, Morch (fig. 74). 



Solitary, laterally attached, longitudinal lirse rather distant, 

 compressed, nodosely serrated, alternately smaller, the inter- 

 stices striate ; whitish, or 3 r ellowish, with angulated (pennate) 

 incremental striae, which are occasionally chestnut-colored. 



California. 



This is V. margaritarum, of Yal. (Yoy. Yenus), in part. 



Y. MICHAUDII, Rouss. PI. 54, fig. 75. 



Yellowish white, laterally attached, longitudinally closely 

 striate, with distant annular ribs. 



Hab. unknown. 

 Y. PORITES Rousseau. PI. 54, fig. 76. 



Thin, laterally attached, very lightly longitudinally striated; 

 incremental striae very close, obsolete, with regular, remote 

 incremental sulci, the interstices slightly convex; yellowish 

 white, darker within. 



Hab. unknown, on a coral. 

 Y. LONGIFILIS, Morch. PI. 54, fig. 77. 



Reclining, laterally attached, loosely twisted, variegated with 

 yellow and light brown, longitudinally lirulate, with three or 



