Zoological Society. 493 



the M. crenulata, that I cannot refrain from separating it as a distinct 

 species. 



MiTRA NANUS. M'ttr. tt'std abbreviuto-ovatii , spird brevi, acutd, 

 transversim undigue sit/catd, sridcis ba.ti/i versu'^ profundlurlbvs ; 

 rubi do -fused, balteo angusto favicdnte, peculiariter ulbimaculuto, 

 cinctd ; columelld quadriplicatd. 



Conch. Icon., Mitm, pi. 24. f. 193. 



Hub. ? 



Distinguished hy its narrow yellow belt, which has a peculiar 

 white knotted appearance. 



MiTRA POKi'HYRiTicA. Mill', tcstd obcso-ovcitd, b(tsi subgroitosd , 

 spird ucuti: turritd ; luiigitudinaliter plicutu-cosluld, costis angii- 

 lutis ; aiifructibus supra albirnntibus, infra olivaceo-cinereis, albi- 

 zonulatis ; columelld quadriplieatd ; uperturd brevi. 

 Conch. Icon., Mitra, pi. 2.5. f. 195. 



Hub. Island of Ticao, Philippines (found under stones at low 

 water) ; Cuming. 



A short stout species, with a sharp angularly turreted spire, en- 

 circled with bands of a peculiarly livid olive-ash-colour. 



Mitra virgata. Mitr. testa oblongo-ovatd, spird brevi, apice acu- 

 ininutu ; Iccvigatd, nitidd, basin versus impresso-striatd ; niger- 

 rimo-fuscd, virgis albis longitudinalibus fexttosis, interdum medio 

 interruptis, ornatd, unfractu ultimo zonula pallidd angustd non- 

 nunquum superne cingulato ; columelld quadriplicatd ; labro medio 

 contralto, superne sinuato. 



Conch. Icon., Mitra, pi. 25. f. 197 « and b. 



Mitra retusa, var.. Gray; Zool. Beechey's Voyage. 



Hub. Island of Luzon, Philippines (found under stones and in 

 crevices of rocks) ; Cuming. 



This species is exactly intermediate between the Mitra paupercula 

 and retusa. 



Mitra chrysalis. Mitr. testd ovatd, spird brevi, snbretusd; trans- 

 versim undique sulcutd ; fused aut fuscescente, anfractu ultimo 

 maculis interruptis medio uniseriatim cincto ; columelld quadripli- 

 catd ; labro medio contracto. 



Conch. Icon., Mitra, pi. 25. f. 200. 



Hub. ? 



May be distinguished from the young of the Mitra cucumerina hy 

 its peculiarly contracted lip. 



Mitra concinna. Mitr. testd ovatd, basi contractd, spird tutTitd ; 

 anfractibus superne angulatis, longitudinaliter costatis, costis un- 

 guium super granoso-mucronatis , liris parvis obtusis transversim 

 decussatis ; liris transversis vivide luteis, interstitiis nigricante- 

 castaneis ; columelld quadriplicatd. 



Conch. Icon., Mitra, pi. 26. f. 203. 



Hub. Island of Masbate, Philippines (found under stones at low 

 water) ; Cuming. 



A bright prettily painted species, very closely approximating in 

 form and scidpture to the Mitra crocata. 



