SIPHONOSTOMA, (JIRRIPEDIA. 
205 
LerncBocern harnimii., sp. n., Hartmann, Arcb. Anat. Phys. 1870, pp. 72G- 
752, pis. 17, 18. Fixed on the scales of Laheo niloticus in the Nile. It has 
five pairs of natatorial feet, the four anterior pairs hearing two, the last one 
brancli ; the cliitinous integument is traversed by numerous microscopical 
channels, which are not in connexion with any gland, and do not perforate 
the hypodcrmis the musculature, the maxilla3, the intestinal tract, the 
ovaries, and the embryos, which are similar to those of Cyclops, are de- 
scribed. A previous notice on the same subject is given in SB. nat. Fr. 1870, 
p. 00, where it is also remarhed that similar channels within the chitinous 
integument have been observed in Cecrops and Caliopus. 
Lernrra hranchinlis (1^.). A. Metzger, referring to his former paper on the 
snl)ject (sec Record, vol. iv.), states that the former Cyclops-XWo) stages of 
this animal are found frequent on the gills of Fleuroncctes Jlesus, the transi- 
tional stages to the later form of tlie female on Cyclopterus lumpus, Gadus 
merlanyus and morrhua, in February and March, on the coast of East Fries- 
land. JB, Ges. Hannov. no. xx. for 1869-70, p. 33. 
CIRRIPEDIA. 
Prof. Clauses researches into the second or pupa-stage of Cir- 
ripeds, wlien they somewhat resemble Ostracods, for the most 
part confirm Darwin^s, especially in some points on which 
Pagenstecher (Z. wiss. Zool. 1863) expressed a different opi- 
nion; hut, in interpreting the homology of the appendicular 
organs, Claus urges that the frontal processes which fix the 
animal ai’o not homologous to antenme, because in the larvre of 
the lower Crustaceans the latter generally appear as natatorial 
feet. The first unbranched pair of natatorial feet is homologous 
to the first pair of antennai, and the second pair of feet with two 
branches to the second pair of antennse, but the homology of the 
third pair of feet to the maxillary organs is still to be made out. 
The six pairs of cirrated feet of the perfect Cirriped are homo- 
logous to the five pairs of natatorial feet, and to the protuber- 
ance of the genital segment of the perfect Copepod. The ner- 
vous system of the larva is described ; and the conical protuberance 
in front is said to be a sensitive organ, and is identified with the 
opening of Darwin^s auditory organ. The cement-glands and 
their excretory ducts are less developed in Lepas pectinata and 
L. fascicular is (pi. 1. f. 2) than in Conchoderma virgatum (pi. 1. 
f. 3), and in another larva of large size, which is not systema- 
tically determined, but furnished the chief material of this paper, 
and is figured. Schr. Ges. Marb. v. (1869) Suppl. pp. 1-17, 
pis. 1, 2. 
Archozoea giyas, nov. gen. and sp. Four to five millims. in size. A new 
form of larva of Cirripeds, distinguished by a glandular apparatus within the 
shield, and six pairs of movable spines, from the sea, near Chile. A. Dohrn 
Z. wiss. Zool. XX. 4, pp. 597-606, pis. 28, 29. 
Balamis impi'ovisus, Darwin, and an undetermined species, similar to de- 
clivis, Darwin, in the Black Sea. Czerniavski, Mat. zoogr. Pont. pp. 63, 64. 
