SCOLECIDA. 
747 
Filaria medinmsis. Notes by Quyon, see p. 741. 
Filaria ocidi. Guy on (l.c. p. 743) mentions that this Nematoid worm, 
which he suggests may ultimately prove to be but a young stage of the Dra- 
cunculns medinensis, has been several times met with under the conjunctiva of 
negroes, both on the west coast of Africa and in parts of America. In this 
paper M. Guyon records the occurrence of perhaps the largest specimen yet met 
with, beneath the conjunctiva of a negro at the Gaboon; it measured nearly 
six inches in length. A short history of the various instances met with 
since 1777 is given by M. Guyon, who alludes to a case submitted to the 
French Academy by himself in 1838, of two Filarice existing one in each 
eye of the same negro : that of the right eye being removed, in a few hours 
afterwards that of the left eye made its appearance in the right eye and was 
also removed. These specimens measured from one inch to an inch and a half 
in length. 
Ascaris nigrovenoBa. On its development, see Meeznikow’s paper referred 
to above (p. 743) ; and Leuckart (in reply to Meeznikow) in Reichert and 
Du Bois-R. Archiv, 18G5, pp. G41-C58. 
Laboulbene describes a parasitic worm {Bfermis or Gordius) found in 
abundance in a species of Mantis in New Caledonia. Ann. Soc. Ent. Fr. 
4 s6r. tome iv. p. 678. 
Acanthocephala. 
Fchinorliynchus. In the memoir above cited (Journal de TAnatomie, 1864, 
p. 683), M. Lespes gives a very elaborate account of the anatomy of a species 
of this genus. M. Lespes has for some three years particularly investigated 
the structure and development of one species, Fchinorhynchus clavtsceps, which 
is found in numbers in the intestines of the minnow and bleak of a little river 
at Dijon. The paper is not as elaborate a one as the author could have 
wished ; but not finding the species at Marseilles, where he is now resident, 
he has come to the determination to publish the principal result of his re- 
searches. These chiefly relate to the organization of the proboscis, of the female 
sexual organs, and to the hatching of the ova. The proboscis is composed of 
two parts, — the proboscis, properly so called, forming about a third of the 
organ and carrying eighteen recurved hooks ; and the sheath of the proboscis, 
on which one can distinctly see three muscular layers, enclosing a structure 
considered, very rightly, by Siebold to be a nervous ganglion. It is to this 
sheath that the four muscles are attached; and it is from its lower portion 
that the suspensory ligament takes its origin. In the true proboscis, and 
scarcely below the last row of hooks, one sees a pyriform body, often of a 
yellowish tinge, which many anatomists have considered to be the remains 
of the alimentary system, which has become aborted in the last stage of 
development. It is, according to the author, a complete alimentary system. It 
opens at the extremity of the proboscis by a very minute pore placed on the 
summit of a terminal papilla, which, while the animal is living, is extremely 
mobile. Through this aperture M. Lespes has seen it reject a considerable 
quantity of the contents of the pouch : on this point he is completely satisfied. 
The digestive cavity is furnished with a few large non-nucleated cells, forming 
a single epithelial layer. The pouch generally contains a pulpy mass full of 
small granules, exactly like the mucus from the intestine of a fish; the bottom 
of this pouch is adherent to a glandular organ, variable in size, without any 
