VERTAGUS. 



Plate III. 



Species 11. (Mus. Cuming.) 



Vertagus granifekhs. Ver. tedd pallkVe falvd,fusco 

 paUido diffusa et inter uodidos maciilatd, siibci/liiidricd, 

 angustd ; anfractibus numerosis, subiiijlalis, superne 

 prope suturam costd tuberculatd spiraUUr itiarginatd, 

 turn costis duabus graniferis distmdibiis et infra nnd 

 proxiiiid cinctis, interstitiis sfriatis, ultimo aiifractu in- 

 fra subrotundo granifero ; aperturd obUqud, columelld 

 laminatd, intus uniplicatd, canali brevi. 



The grained Vertagus. Sliell pale-fawn, sufl'used 

 with pale-brown, and spotted between the nodules, 

 cylindrical, narrow ; whorls numerous, slightly in- 

 flated, above near the suture bordered with a tuber- 

 culated rib, then surrounded with two distant, gra- 

 nulated ribs, one approximate beneath, interstices 

 striated, the last whorl rounded and granulated be- 

 neath ; aperture oblique, columella laminated, uni- 

 plicate within, canal short. 



Pease. 



Hub. Sandwich Islands. 



This pretty little shell resembles V. Kocliii, but it is 

 more finely and uniformly granulated throughout. 



Species 13. (Mus. Cuming.) 



Vertagus attenuatus. Ver. testa elotigato-tiirrild, 

 albidd, riifo macidatd ; anfractilnis pluniuscnlis, liris 

 grunosis i/tajoribus et laoibus minoribits alternatim 

 cinctis ; aperturd obliqud, labro crenato, columelld la- 

 minatd, sicperne plicatd, canali angnstd, elongatd, ob- 

 liqud. 



The attenuated Vertagus. Shell lengthened, tur- 

 reted, whitish, spotted with reddish-brown ; whorls 

 I'ather flat, girt with large, granulated, nnd with small, 

 smooth ribs alternately ; aperture oblique, outer lip 

 crenated, columella laminated, plicated above, canal 

 narrow, elongated, oblique. 



Philippi, Abbildungen, t. i. f. 2. 



Cerithiiim longicaudatnm, Reeve and Adams. 



Sab. Philippines. 



The canal of this species is only slightly bent back- 

 wards. 



Species 13. (Mus. Cuming.) 



Vertagus Pharos. Ver. testd dongatd, angustd, Ueci, 

 albidd, fusco spiraliter tceniatd, spiraliter distanler 

 sulcata; anfractibus longitudinaliter superne ecstatic, 

 ad marginem. superiorem crenulatis ; aperturd obliqud, 

 labro laqueato, canali obliquo, tortuo, elongato, retror- 

 so, columelld crassd, prope marginem uiiituberculatd, 

 intus uniplicatd. 



The Pharos Vertagus. Shell elongate, narrow, smooth, 

 whitish, spirally ribanded with brown, spirally dis- 

 tantly sulcated ; whorls longitudinally ribbed above, 

 creuulated at the upper margin; aperture oblique, 

 outer lip fluted, canal oblique, tortuous, elongated, 

 curved backwards, columella thick, with one tubercle 

 near the margin, ami one plait within. 



Hinds, Moll. Voy. Sulphur, p. 37. pi. xi. f. 3, 4. 



Eab. East Coast of Africa. 



Narrower and smaller than V.fasciutus, the ribs and 

 marginal crenulations sharper and deeper. 



Species 14. (Fig. a, b, Mas. Cuming.) 



Vertagus Martiniinus. Ver. testa ublongd, subcyliu- 

 draced, leevi, alba, fusco seriatim maculatd vet longitu- 

 dinaliter fasciald, spiraliter sulcata ; anfractibus paulo 

 couve.vis, superne plicatis ; aperturd obliqud, columelld 

 un' plicatd, medio tumido, canali tortuo obliquo, retrorso, 

 labro crasso. 



Martin's Vertagus. Shell oblong, subcylindrieal, 

 smooth, white, spotted in rows or longitudinal bands 

 of brown, spirally sulcated ; whorls slightly convex, 

 plicated above; aperture oblique, columella with one 

 fold, tumid in the middle, canal tortuous, oblique, 

 bent backwards, outer lip thick. 



Pfeiffer, Kegister. 



Hab. ? 



The character of the markings in this species difl'ers from 

 that oi V. fasciatus in being vertical instead of spiral in 

 direction, and this difli'erence being constant, may be useful 

 as a special distinction for conventional purposes. 



March, ] 866. 



