$2 
Long. 24; lat. 4 poll. 
Hab. Island of Zebu, Philippines. 
We have much pleasure in dedicating this species to our excellent 
friend the Rev. W. L. T. Garnons, F.L.S. &c. The labour which 
this worthy gentleman has bestowed on the arrangement of the 
Woodwardian collection of shells at Cambridge bears ample testi- 
mony of his zeal for the science. Several specimens have lately 
made their appearance in London, but we are not aware from whence 
they have arrived. The above locality is obtained from a single 
specimen found by Mr. Cuming at that place, lying dead upon the 
shore at low water. 
Pievrotoma specraBiLis. Pleur. testd subelongato-turritd, multi- 
cingulatd ; albd, cingulis nigro-maculatis, maculis grandibus et 
parvis, numerosissimis, anfractibus convexis, supra et infra fusco- 
fasciatis ; canali brevi, leviter flecuosd. Long. 24; lat. 3 poll. 
Hab. Island of Ticao, Philippines (on the reefs). 
The spotting is of a more numerous and miscellaneous character 
in this species than in any of the genus, though it presents in certain 
respects a modification of that in the preceding species. The dusky 
band which girds the lower portion of the whorls in that species is 
exhibited both round the lower and upper portions in this, and the 
number of spots is apparently doubled in like manner; the canal is 
short, and presents a great peculiarity of character. 
PLEeuROTOMA EXASPERATA. Pleur. testd turritd, anfractibus in 
medio tuberculato-muricatis, tuberculis solidis acutis; albd, an- 
fractu ultimo zond fuscd cingulato ; canali brevissimo ; columella 
pac sunerne callosd ; aperture fauce albo. Long. £; lat. 3 poll. 
ab. : 
This interesting little shell resembles the Pleurotoma wnizonalis in 
being surrounded with a single clear dark band ; but it differs, first, 
in being of a more turrited form; secondly, in having the whorls 
encircled with a sharp row of tubercles instead of longitudinal ribs ; 
and thirdly, in the columella and interior being white, whereas in 
that species it is always brown. 
Puevroroma arcuata. Pleur. testd arcuato-fusiformi, tenui, in- 
fiatd, subpellucidd, anfractibus lineatis, in medio acuté carinatis, 
carind maculis fuscis regularibus ornatd ; labro externo rotundato 
ab anfractu ultimo sinu lato separato ; canali gracili, arcuato, 
spire longitudinem equante. Long. 13; lat. 2 poll. 
Hab. Coast of Veragua, Central America. 
A few specimens only of this inflated transparent-looking shell 
were collected at the above-mentioned place by R. Hinds, Esq., of 
Her Majesty’s ship ‘ Sulphur,’ a zealous and intelligent conchologist. 
Prevrotoma picta (Beck, MSS.). Pleur. testd acutissime turritd, 
solidd transversim carinatd, albd, carinis perspicuis, subdistanti- 
bus, maculis fuscis perparce pictis, carind supera valde maxima, 
labro fissurd parvd, subcentrali; canali recto, spire longitudinem 
equante. Long. 2; lat. $ poll. 
