610 
SUMMARY OF CURRENT RESEARCHES RELATING TO 
of Scalpellum , and a representative — Lithoglyptes indicus — of a new 
family, tlie Lithoglyptidte, of Abdominalia. It lias four pairs of 
biramose cirri at the hinder end ; and the caudal appendices have three 
or four joints. 
Belisarius Vigneri.* * * § — Under this name M. Maupas describes a new 
freshwater Copepod from Algeria. It is one of the Harpactidae, but is 
distinguished from all known members of the family by having the first 
thoracic segment distinct and not fused with the head. A short account 
is given of the development ; there are six naupliar and six cyclopoid 
stages: in the former there is an antennary gland, which is, in the 
latter, replaced by the test-gland. This last has at its internal end a 
large funnel in which a vibratory apparatus oscillates rapidly ; this 
organ is a new and powerful argument in favour of the view that the 
test-gland is the homologue of the segmental organs of Annelids. 
British Schizopoda.f — The Rev. Canon A. M. Norman gives a 
revision of the species of Lophogastridse and Euphausiidae known to 
live in the British Seas. This is particularly useful from the fact that 
there is no account in any English work of these oceanic Crustaceans, 
which are either surface swimmers or live in deep water at some distance 
from land. Five genera and eight species are enumerated. 
British Mysidae.| — The Rev. Dr. A. M. Norman completes his 
account of the British Schizopoda by giving descriptions of the British 
species of Mysidse. In Bell’s ‘ British Stalk-Eyed Crustacea ’ only six 
species of this family were described ; in the present paper .an account 
is given of thirty-three species, belonging to five sub-families. More 
will probably be found when the British deep-water fauna is properly 
investigated. 
Heliotropism of Nauplii.§ — M. C. Viguier has investigated the 
heliotropism of Nauplii, after studying the work of Messrs. Groom and 
Loeb. The frequent and irregular change in direction exhibited by the 
larva of Balanus perforatus, and the indifference to light of those of 
Lepas pectinata make it difficult to believe that the vertical excursions 
of Nauplii are solely due to heliotropic causes. He inclines to the view 
of Chun that temperature is an important factor. 
Vermes. 
a. Annelida. 
Polychseta of East Spitzbergen.|| — Dr. E. von Marenzeller reports 
that fifty-eight species of Polychseta were collected by the Bremen 
Expedition to East Spitzbergen, and these ( Spirorbis not being counted) 
were represented by about 750 specimens. Notes as to details of many 
of the species are given, and there are valuable synonymical lists of the 
kind which we are in the habit of expecting from the learned author. 
* Comptes Bendus, cxv. (1892) pp. 135-7. 
f Ann. and Mag. Nat. Hist., ix. (1892) pp. 454-64. 
x Op. cit., x. (1892) pp. 143-66 ; 242-63 (2 pis.). 
§ Comptes Bendus, cxiv. (1892) pp. 1489-92. 
1| Zool. J.B., vi. (1892) pp. 397-434 (1 pi.). 
