Zoological Society. 487 



lositate parvd, supernr annafd ; labro pecuUariter planulato, su- 

 per/ir levitcr runaliculnto, intus crcnulato. 

 Conch. Icon., Mitra, pi. 18. f. 137. 



Hab. Island of Ticao, Philippines (found on the reefs at low water) ; 

 Cuming. 



Very closely allied to the Mitra soUdula, but of a more elongated 

 form, with a smooth shining surface. 



MiTU.\ ROBUSTA. Miti'. testd ovatd, crassd, splrd brcvi, subobtiisd; 

 an/ractibi/s ttnnidiusculis, traiisversim sulcatis, basin versus pra- 

 cipur, longitudiiuditer concentricr p/icato-ru(/osis ; I'tibido -fused ; 

 cohimclld concavd, quadriplicatd, callositate armafd ; lubro incras- 

 sato, planulato, supcrne canaliculato, intus crenulato. 



Conch. Icon., Mitra, pi. 18. f. 140. 



Hub. ? 



This species partakes of the characters of the Mitra Woldernarii 

 and Ziervogclianu in about equal proportions. 



Mitra pulchella. Mitr. testd acuminato -ovatd, spird subturritd, 

 longitudinaliter costellatd, costellis angnstis,planis, confertiusctdis, 

 basin versus subgranosis, transvcrsim itnpresso-striatis ; aurantio- 

 lutescente, fascid purpurascente inter castas ornatd ; columelld 

 quinqueplicatd. 



Conch. Icon., Mitra, pi. 19. f. 142. 



Hab. Island of Barbadoes, West Indies ; Humphreys. 



The painting of this shell has a very pretty appearance. 



Mitra histrio. Mitr. testd subovatd, spird breviusculd, longitu- 

 dinaliter costatd, costis sitbobtusis, basin ve)'sus granulosis, inter- 

 stitiis transversiyn striatis ; vivide coccined, suturis nigris, 7iigro 

 interdum 7iebulosd, balteo alba angusto, balteoque nigro, cingulatd ; 

 columelld quadriplicatd. 



Conch. Icon., Mitra, pi. 19. f. 144. 



Hab. ? 



A gaily-coloured scarlet shell more or less banded and bedaubed 

 with black. 



Mitra rubritincta. Mitr. testd oblongo-ovatd, crassiusculd, acutt 

 acuminatd, transversim undique sulcatd ; albd, maculis grandibus 

 aurantio-rubris supra infraque seriatim nebuloso-tinctd ; columelld 

 quadriplicatd ; labro crenulato. 



Conch. Icon., Mitra, pi. 19. f. 147. 



Hah. Island of Ticao, Piiilipplues (found under stones at low 

 water) ; Cuming. 



The surface of this shell is characteristically grooved throughout. 



Mitra speciosa. Mitr. testd obeso-ovatd, utrinque attenuatd, trans- 

 versim itnprcsso-striatd, longitudinaliter costellatd, costellis pla- 

 niusculis, basin versus granulosis ; rosacea- albicante, costis fascid 

 latissimd fused aut purpurascente-fuscd tinctis, apice rosacea; 

 columelld quadriplicatd, plied superd valde maximd. 



Conch. Icon., Mitra, pi. 19. f. 148. 



Hab. Island of Capul, Philippines (found on the reefs) ; Cuming. 



