472 
CCELENTERATA. 
2 plates) notices Rhizostomites admirandus and lithograpMcuSf and Leptohra- 
chites trigonobrachius, Hack., from the Solenhofen slate. He renames the 
last species Pelagiopsis leucharti, 
ACTINOZOA, 
Alcyoniari A. 
Alcyoniidce, 
Aloyonium digitatum, palmatum^ and a third, undetermined species. A very 
detailed account of their anatomy is given by G. Pouchet and A. Myevre, J, 
de I’Anat. vii. pp. 221-223, 285-315, pis. 4-7 and woodcuts. The first paper 
is reprinted from C. R. ixix. pp. 1097-1099 {cf. Zool. Rec. vi. p. 652). 
PennatulidiB, 
Renilla. A concise summary of the structural characteristics of this group, 
arranged under 16 heads, is given by A. Kiilliker, Verb. Ges. Wiirz. (2) ii. 
pp. 108-111, translated in Ann. N. H. (4) vii. pp. 307-309. 
Pseudogorgia godeffroyi^ n. g. & s., Kolliker, 1. c. pp. 20-28, pi. 4. f. 9-19, 
1. c. SB. pp. vii & viii, Gulf St. Vincent. Polyps arranged in simple rows 
on the stem, slightly diverging from a straight line at intervals, each rising 
from a small warty projection of the sarcosoma, as in the undeveloped basins 
of Paragorgia j mouth of the warts apparently closed by 8 round lohos. No 
trace of an internal horny or calcareous axis, hut a broad central canal, which 
is simply a prolongation of the internal cavity of an outstanding polyp, 
placed near the extremity of the stem, with tentacles probably smaller than 
the others. Mesenterial filaments arranged under the stomach, as in the 
PennatuUdce ; two long and narrow, the others short and thicker. The first 
extend throughout the whole polyparium, while those next to them are pro- 
duced into narrow septula. The septa bearing the long filaments are not 
always quite symmetrically arranged on the ventral side of the polyparium. 
Opposite to these stand two dorsal septula, rather thicker than the others 
between the dorsal and lateral ventral septa, which may be called the central 
and dorsal lateral septula. Sarcosoma without layers of muscles in the body-r 
wall, but with an unusual development of the finer digestive tubes. 
Probably a primordial form of the PennatuUd<^, nearly related to the 
Alcyoniidce and Gorgoniidce. (Another new genus, Coelogorgia, is mentioned 
but not described, which combines the characters of the Alcyoniidce and 
Gorgmiidce.) 
Renilla muellerij sp. n., M. Schultze, SB. Ver. Rheinl. xxviii. p. 37, Brazil. 
GorgoniidcB. 
For a popular account of the coral-fishery in the Mediterranean, cf. Molin, 
Schr. Ver. nat. Wien, x. pp. 429-458. 
Callicella elegans, Gray, appears to belong rather to the Primnoidce than to 
the Calligorgoniidce. E. P. Wright, Q. J. Micr. Sci. xi. p. 319. 
A. Kolliker, 1. c. ii. pp. 11-20, considers the genus Spmgiod&i'ma to belong 
to the Gorgoniidce — Briareaceccy and to come nearest to I'itanideum, Ag. He 
revises the characters of Spongioderma as follows : — Axis very sharply 
