486 
ME. H. N. ETDLEY ON THE 
5. Mueex (Ocinebea) alveatus, Kiener. 
Hab. Panama {Reeve, Kobelt, Sowerby ); West Indies ( Tryon ). 
As suggested by Tryon *, I think there must be some mistake 
with regard to the locality “ Panama ” which has been assigned 
to this species first of all by Reeve and afterwards by others. I 
have never seen a specimen from that locality, and Mr. G. B. 
Sowerby informs me that he has frequently received it with 
collections from the West Indies, but never from the Pacific side 
of Central America. M. erosus , Broderip, M. obeliscus , A. Adams, 
Triton Cantrainei, Recluz, and probably M. pauper cuius, C. B. 
Adams, are perfectly distinct from the present species and from 
one another. This is another example of Tryon’s rash and indis- 
criminate “ lumping” of species, which detracts so much from 
whatever value may be attached to his work. 
6. Pisania pusio ( Linne ). 
Buccinum pusio, Reeve, Con. Icon. fig. 43. 
Hab. Honduras and St. Thomas (Coll. Cuming ); Sta. Lucia 
(d' Orbigny as Purpura accincta) ; Ascension I. (Cowry). 
The specimens from Fernando Noronha are rather small, and 
much more distinctly striated than certain examples from the 
West Indies. 
7. PiTKPUEA hjemastoma, Linne . 
The specimens obtained by Mr. Ridley constitute a well-marked 
variety of this well-known species, both as regards form and 
colour. They have the spire more elevated in proportion to the 
length of the aperture, and only the two uppermost of the four 
series of nodules on the body-whorl are distinct. The interior 
of the aperture is greenish blue, reddish near the labrum, which 
is bordered within with black-browm, upon which the fine orange 
or yellowish lirae are very distinct. The exterior of the shell is 
purplish black, streaked and spotted with greenish white. 
P. hcemastoma is known from the West Indies, West Africa, 
Mediterranean, Atlantic coasts of France, Spain, and Portugal. 
8. COLUMBELLA MEECATOEIA, Linne. 
Hab. St. Yincent, Grenada, Nevis, Cuba, Martinique, and 
Sta. Lucia (Brit. Musi). 
With one exception the eleven Fernando Noronha shells are 
Man. Conch, vol. ii. p. 128. 
