210 Mr. J. Alder on Montacuta ferruginosa. 
2. Streptosolen Benthami (an-nov. sp. vel preecedentis var. ?) ;—ra- 
mulis griseo-hirsutulis ; foliis ovatis, minus rugosis, lete viri- 
dibus, nervis supra impressis, utrinque pilosulis, supra vix sca- 
briusculis, breviter petiolatis; fioribus subcymosis, pedicellis 
calyce vix longioribus; calyce subinflato, late tubuloso, ore valde 
obliquo, tubo pallide viridi, nervis fuscis lineato, dentibus 5, in- 
zequalibus, ovatis, obtusis, ceerulescentibus ; corolle limbi lobis 
brevibus, emarginatis, lobo antico (in alabastro postico) multo 
majori, subreflexo.—Nova Granada, v. s. in herb. Hook. (inter 
Mivir et Naranjas, altit. 7000 ped., Jameson). 
I have seen only a single and very meagre specimen of this 
small shrub,’ which has few flowers: the leaves are of the 
same shape but somewhat smaller than in the foregoing species, 
much smoother and of a lighter colour ; the flower is about the 
size of that of S. Jamesoni; the calyx is however larger, wider, 
with much broader and more obtuse segments ; it creases some- 
what in fruit to a length of 6 lines and a diameter of nearly 3 
lines, and conceals the capsule, which is about 3 lies long ; it has 
four thick coriaceous valves, is seated upon its stipitate support, 
and encircled at base by the induvial remains of the corolla. 
XX.— Notes on Montacuta ferruginosa. By Josnua ALDER. 
[With a Plate. ] 
THE interesting little bivalve Montacuta ferruginosa, though 
pretty generally diffused round the British coasts, has seldom 
been observed in a living state, and no account of the animal has 
been published, if we except the very imperfect one furnished by 
myself to Professor E. Forbes for the ‘ History of British Mol- 
lusca.’? This, though correct as far as it goes, is by no means a 
complete description, having been taken under very unfavourable 
circumstances. I was glad, therefore, to meet with another living 
example of this species, which seemed less shy in displaying itself 
than the former one. It was taken from the stomach of a had- 
dock,—a very unpromising locality certainly for meeting with 
anything ina living state,—but the little creature on being placed 
in sea-water appeared quite lively, and not visibly the worse for 
the uncomfortable quarters from which it had been extracted. In 
a short time it protruded the mantle beyond the shell, extended 
its large foot, and began to crawl about. The mantle of this 
species is curious and interesting from its showing a new modi- 
fication of that part, intermediate between the plain anterior si- 
phonal fold of Kedlia rubra and the more elaborate form of mantle 
in Lepton squamosum, and thus supplying the desired link to ~ 
