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sorial filaments. Mandible: The second protopodite joint has no bristles at the middle
of the dorsal side. The exopodite is about half as long as the anterior side of the first endopodite
joint. The second endopodite joint has two proximal bristles, which are almost as long as the
main bristle a and one long, narrow bristle between the main bristles b and c. The end claw
is about as long as the anterior side of the second and third endopodite joints. The f u r c a
has seven claws in the female (pl. 29, figs. 22, 24, 25). In the case of the two latter a uthors’
forms a reference to the figures of the shell should be enough to support the contention I have
put forward above; further details would be superfluous.
As neither descriptions nor figures have been given nothing can be said with certainty
about the relation of the folio wing forms to the forms treated above: Cylindroleberis Mariae,
A. M. NORMAN, 1867, p. 198; 1869, pp. 259, 295. Philomedes Mariae, A. M. Norman.
1867, p. 208. Asterope Mariae, G. 8. BRADY, 1871, p. 295; 1902 b, p. 99; G. O. Sars, 1872,
p. 279; G. S. Brady and D. ROBERTSON, 1872, pp. 59, 70; 1874, p. 115; 1876, p. 187; Til. SCOTT,
1902 b, pp. 497, 509, 511, 517; Marine Biologica! Association, 1904; C. H. OSTENFELD, 1906,
p. 96; C. H. Ostenfeld and C. Wesenberg-Lund, 1909, p. 112; A. M. Norman and G. S.
Brady, 1909, p. 359. Asterope oblonga, E. Graeffe, 1900, p. 34. Cylindroleberis oblonga, G. W.
Müller, 1908, p. 94; O. de Buen, 1916, p. 365.
In order still further to illustrate the uncertainty that exists with regard to the
synonvm-ization of forms belonging to this group the following facts may be added. I applied to Professor
G. S. Brady for specimens of A. Mariae so as to carry out a verificatory investigation. A tube
eontaining a number of individuals, definecl by Professor Brady as A. Mariae, was kindly
sent to me by this investigator. As will be seen in the remark under A. aberrata, p. 508 of this
treatise, all the specimens except one turned out to belong to the latter species, which is of course
a form that is fairly well differentiated from species of the Grimaldi group wich regard to the
type of shell, etc. The specimen that did not belong to A. aberrata was a larva, a male in the
penultimate larval stage, which thus diel not permit of certain identification of the species, but
I do not hesitate, however, to state that it is very probable that it belonged to A. norvegica.
Sin ce, as has been shown above, both Cypridina Mariae W. Baird and C. oblonga
E. Grube are too incompletely described to allow of quite certain identification of lhese species,
it seems undoubtedlv best, at least for the present, to reject these two naines of species
in order to avoicl further confusion. Only if it should turn out that fully identifiable
type-specimens are still in existence or if only a single form of this type were to be found at the
type localities, the Isle of Skye in the case of C. Mariae and Cherso Island in the Adriatic Sea
in that of C. oblonga, ought these names to be adopted once more.
Habitat: — Mediter r anean Sea: Villefranche-sur-mer, France,
(type-loca-1 i ty); 19. I. 1916; depth 95 m.; fine clay; temperature at the bottom, + 13,5° C.: one mature
female; (auctor coli.); R. M. S., on slides. Naples: one male juvenis (coll. G. W. MÜLLER);
R. M. S., on slides.
Distribution: — Naples (G. W. MÜLLER, loc. eit.).
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