442 Dr. R. O. Cunningham on the Zoology of 
tioned there is a sort of tooth on the basal margin of the peri- 
stome, whilst in H. zgnicoma the basal margin is only slightly 
sinuate. 
Note-—The shell identified by me with Bulimus immacu- 
latus, Reeve, seems probably not to be that species, but an 
uncoloured variety of the Trinidad form of B. multifasciatus, 
determined to be B. vincentinus, Pf. 
The Planorbis regarded as identical with a Cuban species 
should be P. tervertanus, not terversanus. 
Port of Spain, Trinidad, April 1868. 
L.—Carcinological Gleanings. No. II. 
By C. Spence BATE, Esq., F.R.S. 
[Plate XXI.] 
Dr. Cunningham writes me from 
At sea, November 8, 1867. 
(Between Monte Video and Magellan Strait.) 
My bear Sir, 
I have long had it in my mind to write to you, as you were 
so good as to express a wish to hear from me occasionally during 
my absence from the United Kingdom, when I had the plea- 
sure of meeting you at Plymouth last year; and I now put my 
intention into execution. We left Plymouth on the 8th of 
September, 1866, but encountered such a severe gale that after 
battling with it and vainly attempting to run into Brest, we 
were forced to return to the Sound on the 10th, and lay there 
till the evening of the 17th, when we again set forth, and, after 
a rather rough passage, reached Madeira, where we remained 
for about a week. Unfortunately, we were placed in quaran- 
tine for the first five days of our stay, so that I was not able 
to see nearly as much of the island as I wished. So much 
has been said of the wonderful beauty of Madeira that I will 
not enlarge upon it, but content myself with observing that I 
think it is about the most lovely place I have seen since I left 
home. I accomplished a little dredging in the Bay of Funchal, 
and obtained a variety of Mollusca, chiefly belonging to Euro- 
pean types. A Dentaliuwm was specially abundant in the fine 
mud of the bottom, existing in hundreds. I, however, met with 
no Crustacea. I had a delightful ride up the Grand Canal on 
the 2nd of October; and on the evening of the same day we left 
Madeira for St. Vincent, in the Cape Verde group. There 
we arrived on the forenoon of the 9th, and remained four or 
five days, in the course of which I had some pleasant rambles. 
I need hardly say that St. Vincent is noted for its extreme 
