790 
SUMMARY OF CURRENT RESEARCHES RELATING TO 
that M. Vaillant should not have united but have left distinct the two 
genera Clitellio and Limnodrilus. A new genus named Kerria interme- 
diate between Acanthodrilus and Ocnerodrilus is next described. With 
the exception of a Pachydrilus no Oligochaete has before been found in 
exceedingly salt water, and it is therefore called K. halophila ; it was 
found by Mr. J. Graham Kerr in the upper reaches of the Pilcomayo 
river. Mr. Beddard chiefly confines himself to the points of taxonomic 
importance, and shows that its affinities are as already stated. It must 
be placed in the large and imperfectly known group which he has called 
that of the Cryptodrilidse. 
New Genus of Enchytrseidae.* — Dr. H. Ude gives a short descrip- 
tion of a new Enchytrseid which he found at Altenar under moss on the 
stump of a tree, and which he proposes to call Bryodrilus Elilersi. The 
setae are of the Pachydrilus- type, and are arranged by fours or fives ; 
there are four proportionately small enteric pouches, which are directed 
backwards. The dorsal vessel arises much farther back than in any 
known allied Enchytrasid. 
Earthworms of the Berlin Museum.f— Dr. W. Michaelsen describes 
a number of new species of Earthworms from the Berlin Museum, but 
makes no generalizations. From Africa the new forms are Benhamia 
inermis, B. pallida, B. gracilis , B. Biittneri, B. togo'ensis , Kynotus Kelleri, 
and Eadrilus Biittneri. Perichseta heterochseta Mich, from the Azores is 
recognized as a synonym of the widely spread P. indica. From America 
comes a new genus Tyhonus (T. grandis) allied to Anteus ; Anteus papil- 
lifer, A. hrunneus, A. Appuni , A. callichsetus, Pontodrilus arense, Eudrilus 
roseus , Acanthodrilus platurus, Perichseta pallida are new species. The 
only new form from Australia and Polynesia is Perichseta neoguinensis. 
From Asia there come Moniligaster japonicus , Perichseta pulchra, P. 
Hilgendorfi, P. alhida , P. longa , P. UJcedemi , P. mandhorensis, P. 
Martensi, P. divergens, Megascolex iris, M. margaritaceus, and M pictus 
spp. nn. Pleionogaster (P. Jagori and P. samariensis ) is a new genus 
of Perichaetidae in which there are several postclitellial stomachs. 
Perichseta monilicystis is the only new species from Europe, but it was 
found in a hothouse in the Botanical Garden at Berlin, where it may 
have been introduced. 
Trocheta subviridis.j; — Prof. E. Blanchard has made a careful 
inquiry into the geographical distribution of Trocheta suhviridis, of 
which he gives a detailed account. He comes to the conclusion that it 
may be regarded as a form peculiar to Western Europe. 
Notes on Hirudinea.§ — Prof. E. Blanchard deals, in the third of his 
communications, with various species of Nephelis ; he treats in greatest 
detail N. atomaria Carena, but has notes also on N. octoculata Bergmann, 
and short descriptions of two new species which he calls N. gallica and 
N. tergestina. 
Xerobdella Lecomtei.il — Dr. E. Blanchard gives a description of 
this terrestrial Leech, first described, in 1868, by von Frauenfeld ; he has 
* Zool. Anzeig., xv. (1892) pp. 344 and 5. 
f Arch. f. Naturg., lviii. (1892) pp. 209-61 (1 pi.). 
X Actes Soc. Ligust. Sci. Nat., iii. 4 (1892) 31 pp. (sep. copy) (8 figs.). 
§ Bull. Soc. Zool. France, xvii. (1892) pp. 165-72 (5 figs.). 
Il Mem. Soc. Zool. France, v. (1892) pp. 539-53 (9 figs.). 
