Miscellaneous. 301 
name of P. coronata on the same page, and figured in the ‘ Genera 
of Recent Mollusca’ by Messrs. H. and A. Adams on pl. xiv. 
fi le 
Mr. E. W. H. Holdsworth has recently presented to the British 
Museum a series of shells which he had collected in Ceylon; and 
among them are three specimens of Pinaaia, two of which have the 
operculum preserved. It is horny, stained with pinkish colour, and 
of the usual form that obtains among the Purpurine, and thus 
shows that this genus has been rightly located by the above authors. 
The small transverse plaits on the columella (about six in number) 
appear to exist only in the adult shell ; and the same remark applies 
to the fine lirations within the aperture. 
In a variety from the Sandwich Islands the coronation which 
edges the spire in the typical form is totally wanting, the general 
form is more bulbous, and the spiral lirations are but slightly raised. 
The deciduous epidermis is villose and of a pale olive colour. 
In 1839, in the ‘ Zoology of Beechey’s Voyage,’ p. 114, Dr. Gray 
described a shell from the Pacific Ocean under the name of Pyrula 
versicolor. The description is excellent; but by an oversight or 
printer’s error, the colour is stated to be “bright crimson,” which 
no doubt should have been bright orange. The specimen from which 
the description was taken, although a large one, is not adult; and 
consequently the character of the plaits on the columella is not 
mentioned. Taking these two circumstances into consideration, I 
think it will be advisable to adopt the more recent name coronata. 
Perhaps this may be a fitting opportunity to acquaint concholo- 
gists that one of the last, and not least, of the innumerable acts of 
generosity of the late deeply lamented Dr. Gray was the presentation 
by him to the British Museum of his private collection of shells. 
How valuable an acquisition to the National Collection this is will 
at once be acknowledged, as it comprises a large number of types 
of his species which were described many years ago in the Zoology 
of ‘ Beechey’s Voyage,’ Griffith’s edition of Cuvier’s ‘Animal King- 
dom,’ the ‘Annals and Magazine of Natural History,’ the ‘Zoological 
Journal,’ the ‘ Zoological Miscellany,’ &c. A number of these species 
are but briefly characterized and unfigured ; so that in the present 
state of conchological science it is almost impossible to recognize 
them, at least with any degree of certainy, except by comparison 
with the actual types. ‘Thus the value of the collection becomes 
greatly enhanced. 
On the general Phenomena of the Embryogeny of the Nemertians. 
By M. J, Barros, 
Amongst the numerous obstacles which one encounters at each 
step in researches in embryogeny, there is none more serious than 
that presented by the multiplicity of the larval forms in the same 
group of animals. These divergences, often very great in the first 
stages of development, prevent us from taking these as a starting- 
point in the appreciation of the subsequent phenomena; conse- 
Ann. & Mag. N. Hist. Ser. 4. Vol. xv. 
