MITRA caffra, 

 Brow7i white- banded Mitre. — middle figures. 



Gekeric Character. — See PI. 23. 



Specific Character. 



M. (div. \.)fusiformis, rufo-fuscata, albofasciata, Icevis, spira pUcato- 

 striata, basi rugosd, cohimelld quadriplicatd. — Lamarck, 



Shell fusiform, reddish brown, with whitish bands ; smooth ; spire 

 plaited and striated ; base rugose; pillar 4 plaited. 



Voluta cafFra. G?nelin. 3451. Martinis, tab. 148./. 1370.? Di/L 

 p. 545. 



Mitra caffra. Lamarck. Ann. du Mus. vol. vii. p. 208. tio. 30. 



It is not improbable that Mitra bifasciala, (Zool. III. pi. 35.J 

 may eventually be considered only a variety of the shell here 

 figured, which accords much closer with the characters given 

 of the Linna3an M. caffra, than any other ; the two shells, 

 however, at the first glance, have a widely different appear- 

 ance ; yet not more so, than the smooth and plaited varieties 

 of Slroiitbus vittatus Lin. I have therefore retained the cha- 

 racter given by Lamarck, as the best method to be followed 

 in doubtful cases. In this shell, the plaits commence half- 

 way round the body whirl ; they are obtuse, crowded, and 

 not angulated near the suture ; the striae between are fine 

 and decidedly marked ; the base half of the shell strongly 

 grooved ; the suture rather compressed ; the channel short 

 and not recurved, and the aperture striated. 



MITRA crassa. 

 Thick Mitre — upper and lower figures. 



M. fdiv.S.J testd hevi, medid crassd, fused, fascia an gust d suli-albd 



ornatd ; syird striatd, striis intus punctatls ; labia exteriurc dcn- 



tato ; columelld 5 plicatd. 

 Shell smooth, thick in the middle, brown, with a narrow whitish 



band ; spire striated, the strise with internal punctures : outer 



lip crenated ; pillar 5 plaited. 



A SPECIES evidently unknown to Lamarck ; the upper mar- 

 gin of each whorl is thick and projecting; the striae on the 

 body whorl are nearly obsolete, but on the spire become deep, 

 remote, and having internally minute hollow dots ; the inner 

 margin of the exterior lip is strongly crenated, the a|)erture 

 smooth, and the pillar with five strong teeth. I believe it 

 was brought from the South Seas. 

 PI. 88. 



