142 
THE NAUTILUS. 
In 1873 a second Mexican species was announced, V. mexicana 
Pfeffer, in Strebel’s work on the fauna of Mexico, p. 130. It was 
47 nun. long, red-brown to grey-brown and black-brown. 
For many years no more additions were made ; until in 1885 (or 
Jan. 1886?) Dr. Semper’s elaborate work on the genus appeared. 
In this, on p. 293, we find V. mexicanus n. sp., from Mexico ; but 
the author having discovered, too late to change the text, that there 
was already a species of that name, takes the opportunity of writing 
V. strebelii instead on the explanation to the plate. This mexicanus 
=strebelii is 51 mm. long, 15? broad, with the female orifice 1J 
mm. from sole and almost exactly equidistant from each end. On 
p. 316 of the same work, Semper describes a true mexicanus Pfeff., 
which he had from Strebel. It was found in Vera Cruz, and was 
whitish-flesh, only 20 mm. long, with the 9 orifice a little hind of 
the middle. If this specimen was really of the same species as orig¬ 
inally described in 1873, it must have been somewhat immature. 
In the same work of Semper, p. 295, appears a Chilian species, V. 
decipiens Semper. This is supposed to be also a native of Mexico, 
but I think the latter habitat must be accepted with some reserva¬ 
tion ; unless perchance, it has reached there accidentally through 
human agency. It is dark yellowish-brown, with the mantle black- 
spotted, 42 mm. long, 16? broad, $ orifice 1 mm. from sole, and 
somewhat anterior to the middle. This V. decipiens is very much 
like the Chilian V. adspersa Heynemann ; so much so that one 
strongly suspects that they are forms of one species. They were 
published nearly at the same time, but I think adspersa has prior¬ 
ity. Since Semper’s work no further additions have been made. 
In the British Museum are two other forms, which are the more 
interesting in that they represent new localities. They do not seem 
to be precisely identical with any of the described species, but all 
things considered, it seems preferable to leave them unnamed for 
the present. Descriptive notes are appended : 
(1.) Veronicella sp. nov., vel mexicana var. 
Long, (in alch.) 42?, lat. 20?, sole lat. 10 mm. $ orifice from 
head 22 (almost median), from sole 2 mm. Sole rather rounded 
posteriorly, not projecting beyond mantle, finely and closely trans¬ 
versely striate. Mantle above rugose-granulose, not at all papil¬ 
late; color pale grayish-ochreous, above obscurely gray mottled, 
with the slightest indication of a dorsal and lateral dark band, only 
noticeable when looked for. Back arched, rounded. Upper ten¬ 
tacles grayish, lower pale ochery. 
