Zoological Society. — 271 
The whorls are characterized by a peculiar narrow depression 
round the upper part, beneath which they are for a short distance 
tubercularly ribbed. 
Mirra amanpa. Mitr. testd subpyramidali, spird acuto-turritd ; 
anfractibus longitudinaliter crebricostatis, transversim impressis ; 
fasciis angustis rubido-fuscis albisque undique cingulata ; columella 
quadriplicatd. 
Conch. Icon., Mitra, pl. 38. f. 318. 
Hab. Islands of Burias and Negros, Philippines (found among coral 
sand at the depth of four fathoms) ; Cuming. 
Encircled throughout with narrow white and reddish brown bands. 
Mirra crocea. Mitr. testd ovatd, spire suturis impressis ; an- 
Sractibus superneé plano-angulatis ; longitudinaliter crebricostatis, 
transversim basim versus sulcatis ; pallidé croced, aperture fauce 
aurantio tinctd ; columella quadriplicata. 
Conch. Icon., Mitra, pl. 38. f. 320. 
Hab. Island of Capul, Philippines (found under stones at low 
water) ; Cuming. 
Of a beautiful clear yellow colour, with orange mouth. 
Mirra rosacea. Mitr. testd ovatd, spird breviusculad; liris gra- 
natis undique cingulatd ; nived, maculis grandibus pallide rosaceis 
bifasciatim ornatd ; columelld quinqueplicata ; apertura oblongo- 
ovata ; labro crenulato. 
Conch. Icon., Mitra, pl. 38. f. 321. 
Hab. Island of Corrigidor, Philippines (found among coral sand at 
the depth of ten fathoms) ; Cuming. 
An extremely delicate semitransparent pink-stained white shell. 
Mirra masta. Mitr. testd oblongo-ovatd, transversim sulcatd, le- 
vigatd ; fuscescente, anfractuum parte superiori pallide luted ; 
columella quadriplicatd. 
Conch. Icon., Mitra, pl. 38. f. 323. 
Hab. Island of Corrigidor, Philippines (dredged among coral sand 
at the depth of ten fathoms) ; Cuming. 
The columella and mouth of this species are brightly enamelled. 
Mirra Attruiors. Mitr. testd ovatd, crassd, spird acutd, liris 
parvis transversis et longitudinalibus, concentricis, undique decus- 
satd ; nigerrimd, vel olivaceo-nigrd ; columella planatd, quadri- 
plicatd, callositate superné munitd ; labro planato, intus denticulato, 
superne sinuato.  . 
Conch. Icon., Mitra, pl. 38. f. 324. 
Hab. Islands of Ticao and Luzon, Philippine Islands (found under 
stones at low water) ; Cuming. 
Belonging to that interesting group of which the Mitre Ziervogel- 
tana and Woldemarii form part. 
Mirra zeLtotypPa. Mitr. testa ovald, anfractibus superneé rotunda- 
tis, longitudinaliter costatis, transversim fortiter cancellato-liratis ; 
luteo alboque undique fasciatd ; columelld quadriplicatd, aperture 
Ffauce violascente. 
