284. ON THE GENUS LUCERNARIA. 
not divided into eight arms, furnished throughout with ten- 
tacles, which are, however, assembled into eight equidistant 
groups. Stem equal in length to the height of the bell. 
Sexual organs arranged together in pairs, not reaching to 
the border of the cup. Length 15 mm. 
From this species, which was originally described by Sars, 
have been made the genera Depastrum, Gosse, Carduella, 
Allman, and Calcinaria, Miine-Edwards, but it is here left 
under Lucernaria, where it was originally placed by Sars, as 
Dr. Keferstein is unable to find any essential distinction be- 
tween it and the other species of the genus. 
Hab. The coasts of Norway and England. 
Closely allied to it is the following species : 
6. L. stellifrons, Gosse (sp.). 
Depastrum stellifrons, Gosse; Allman. 
- cyathiforme, Gosse. 
Bell cyathiform, constricted below the opening. Border 
octangular; arms 0, but the tentacles are placed in eight 
equidistant groups, between the angles of the border. Sexual 
organs reaching the border. Stem as long as the bell. 
Length a few millimétres. 
This species was found by Gosse on the English coast, but 
he confounded it with L. cyathiformis, and formed out of the 
two his genus Depastrum. Soon afterwards, however, he 
distinguished it from JL. cyathiformis, and named the new 
species D. stellifrons. By Allman it was regarded as so 
distinct as to induce him to make it the type of the genus 
Depastrum, 1 contradistinction to Carduella, for which he 
took L. cyathiformis as the type. 
Remarks. 
J. It may be mentioned that Professor Reay Greene is in- 
clined to unite L. guadricornis, octoradiata, and campanulata, 
with a single species, which he names L. typica, stating that 
he has met with an intermediate form connecting these 
three species. But it appears to the author, as it does to 
Leuckart, to be not improbable that this intermediate form 
is L. auricula, Fabr., which is readily and essentially distin- 
guishable from the others, with respect to whose independence 
the author agrees with Leuckart and Percival Wright in 
considering that there can be no doubt. 
2. Although Fabricius, under the name of Lucernaria 
