ZOOLOGY AND BOTANY, MICROSCOPY, ETC. 
631 
but in spite of tlie author’s apology, wo regard it as unfortunato that 
these should be mixed up with a very useful introduction. 
New Species of Gordiacea.* * * § — Dr. Tlios. H. Montgomery describes 
two new species of Cliordodes , one Ch. furnessi from Borneo, and the 
other Ch. albibarbatus from Africa. The first was found in two species 
of Mantis , and is especially characterised by the presence of tubercles in 
pairs. The other species is distinguished by the tufts of white hairs 
on its cuticle ; bo.tli sexes are known, and the male and female differ 
from one another in several respects. 
Filaria and Spiroptera.j — Dr. M. Stossich gives a monographic 
account of the numerous species belonging to these and related genera. 
He deals with 212 species of Filaria, 89 species of Spiroptera, and 
several species of Oxyspirura , Filaroides, Spiroxys, and Gongylonema. A 
list of 489 hosts with their various Filaria- parasites is given. 
In a previous paper J he [continues his miscellaneous Helmintho- 
logical Notes. 
Platyhelminthes. 
Structure of Taenia confusa Ward.§ — Mr. M. F. Guyer has made 
a detailed study of this new species of human tape-worm. There is 
unfortunately some doubt with regard to the head, but the other organs 
of the body are described in detail, and are contrasted with those of 
T. saginata and T. solium. 
Stichocotyle Nephropis.|| — Herr T. Odhnerhas succeeded in finding 
the sexual form of this Trematode, whose larval form was described in 
1884 by Mr. J. T. Cunningham from the gut of Nephrops norvegicus, and 
afterwards (1895) by Nickerson from the American lobster. The adult 
was found in the biliary ducts of the liver of Baja clavata, but doubtless 
occurs in other species. It is distinct from Macraspis elegans Olsson, to 
which Monticelli (1892) referred the larva ; but a more precise state- 
ment as to its affinities is reserved. 
Anatomy and Histology of Nemertines.1T — Dr. Ludwig Bohmig has 
recently refound the little fresh-water Nemertine formerly described by 
him as Tetras'emma grsecense, and has also obtained more specimens 
of the terrestrial form described by von Graff as Geonemertes clialico - 
pliora, and has subjected both forms to a thorough histological examina- 
tion. He has in the first place emended Tetrastemma grsecense (Bohmig) 
to Stichostemma grsecense (Bohmig), and has modified the diagnosis 
of von Graff’s species, notably by showing that the sexes arc sepa- 
rate and the male unknown. The remainder of the paper is devoted 
to the anatomy and histology of the two species ; a few of the more 
general points only can be noted here. The observations show that, 
as stated by Burger, a body-cavity is absent in the adult ; it is how- 
ever possible that it exists in the young forms and is filled up by the 
intercellular substance secreted by the connective-tissue cells. Both of 
* Zool. Jalirb. (Abth. Syst.), xi. (1898) pp. 379-84, 493-9G (3 pis.). 
t Boll. Soc. Adriat. Sci. Nat., xviii. (1898) pp. 13-162. 
X Tom. cit., pp. 1-10 (2 pis.). 
§ Zool. Jah lb. (Abth. Syst.), xi. (1898) pp. 4G9 -92 (1 pi.). 
|| Zool. ADzeig., xxi. (1S98) pp. 509-13. 
*|y Zeitschr. f. whs. Zool., lxiv. (1898) pp. 479-564 (5 pis. and 1 fig.). 
