305 



82. Mauginetja tessellata (pl.lxxviii. f. 191-197.), Lam. 

 Anim. s. vert. vii. p. 361. 



M. ovali, all):^ vol straminea, maculis subquadratis magnis fas- 

 ciatim ornata ; spii-a peno celata, apice fascia rubra circulari 

 cincta ; apertiufi aiitico et postico validc cmarginata ; columella 

 alba, in medio tumida, antice in varicem tumidum elevata, plicis 

 quatuor ad quinque obscuris, infequalibus ; labio cxtcmo intiis 

 albo, crenatOj extus fusco, varicoso. 



A common species from Venezuela, distinguished by the dark 

 squarish spots arrayed in broad bands with ufu-row passages 

 between. 



83. Mauginella multi-line ata (pi. Ixxviii. f. 192, 193.), 

 nohis. Zool. Proc. 1846. 



M. ovali, straminea, lineis rubris numerosis cincta ; spira penc 

 celata, apice fascia circulari cincta; apertura antice et postice 

 cmarginata ; columella alba, in medio tumida, antice callosa, plicis 

 (juatuor ad quinque inaiqualibus ; labio externo albo, intus crenu- 

 lato, in medio sub-angulato, extiis tenuiter reflexo. 



On the whole resembling 31. tessellata, but it is much shorter, 

 with the outer lip less varicose on the outside, and coloured by 

 numerous red lines instead of the square patches. 



In Mr. Cuming's Collection. 



84. Marginella interrupta (pi. Ixxviii. f. 201-205.), Lam. 

 Anim. s. vert. viii. p. 362. 



M. ovali, straminea, lineis interruptis, rubris vel nigris cincta ; 

 interdum fusco-maculata ; spira celata ; apertura antice et postice 

 cmarginata, spiram supcrante, columella crassa, in medio tumidc 

 ventricosa, postice in varicem elevata, antice expansa, varicosa, 

 plicis septem irregularibus ; labio externo arcuato, intiis crenulato, 

 extiis plus minusve varicoso, nitide marginato. 



Of an oval and rather irregular form, \ni\\ the spire hidden and 

 the lips of the aperture raised beyond it; the columella lip is 

 tumid, at the apex raised into a varix, in the centre swelling so as 

 to form a ventricose outline and anteriorly raised into a sort of 

 blunt tooth ; it has irregular plaits on the pillar. The outer lip 

 is denticulated within and neatly marginated without. In colouring 

 there are many varieties, but all are marked with more or less 

 interrupted transverse lines. 



From Demerara. 



