SUMMARY OF CURRENT RESEARCHES RELATING TO 
330 
Vermes. 
a. Annelida- 
New Pelagic Polynoid.* * * § — Dr. E. von Marenzeller, under tlie name 
of Neciochseta Grimaldii , describes a ne v genus of Polynoids ; very few 
members of this family are known to be pelagic, as one only is known 
from Algiers and one from Ceylon. The present new form was taken 
by the Prince of Monaco in the yacht 1 Hirondelle ’ in 48° 2P 48" N. 
latitude and 20° 38' 30" W. longitude, or at a very great distance from 
any land. 
The principal character of the new genus consists in the extraordi- 
nary elongation of the setae of the neuropodium : these setae serve for 
swimming. Only a single example was taken, and it was colourless and 
transparent ; by the structure of its cephalic lobe Nectochseta is shown to 
be allied to Lepidonotus. 
New Earthworms. f — Mr. F. E. Beddard has notes on sixteen species 
of earthworms, mostly new, from various localities. Of the Acantho- 
drilidae he describes Octochsetus g. n. (0. thomasi and 0. liuttoni spp. nn. 
from New Zealand), in which he places various species from New 
Zealand previously referred to Acanthodrilus ; the points of distinction 
between Benhamia and the new genus are insisted on. Acanthodrilus 
smithi and A. paludosus are species from New Zealand, which belong to 
the restricted genus Acanthodrilus. A. falclandicus and A. aquarum 
dulcium are also described. Benhamia ivhytei sp. n. was found in 
Nyassa-Land, and from Lagos comes Benhamia crassa sp. n. 
Of the Cryptodrilidse Microdrilus saliens g. et sp. n. comes from Singa- 
pore, Java, and Penang ; the largest specimens are little more than an 
inch long. A fresh diagnosis is given of Perrier’s genus Perionyx , one 
new species of which is described, while there are notes on P. excamtus 
and P. macintoshi. Monilig aster , which has hitherto been found in the 
Old World only, is now represented in the Bahamas by M. hahamensis. 
A new species from Durban is provisionally referred to the genus 
Eudriloides. 
Of the Geoscolecidse Trichochseta harhadensis sp. n. is described from 
a single specimen, which came from Barbadoes. Ilyogenia africana g. et 
sp. n. came from Durban ; it is, perhaps, most nearly related to Anteus 
and Bhinodrilus. 
New Species of Perichaeta.f — Dr. D. Rosa describes Perichseta 
fasciata , P. seliana , P. enganensis spp. nn., and TJrochseta corethrura 
F. Muller, forms collected by Dr. E. Modigliani in the island of 
Engano, near Sumatra. 
Segmental Organ of Enchytr3eidae.§ — Prof. H. Bolsius is not 
satisfied with the descriptions which have been given of this organ. 
Thus, d’Udekem, Eisen, Claparede, Vejdovsky, Michaelsen, Benliam, 
Ude, describe and figure a single ciliated canal, whereas it bifurcates 
and subdivides into a complex anastomosis. The canaliculi reunite in 
* Bull. 8oc. Zool. France, xvii. (1892) pp. 183-5. 
t Proc. Zool. Soc., 1892 (1893) pp. 666-706 (2 pis.), 
j Ann. Mus. Civico Stor. Nat. Genoa, xxxii. (1892) pp. 542-8. 
§ Anat. Anzeig., viii. (1893) pp. 210-5. 
