22 Verm. 
xv. VERMES. 
Nervous System. 
Of Ampharetidce ; Fauvel (3) p. 69, &c. — Cephalic lobe and encephalon 
of Polycnootes (review of Racovitza’s work); Jacquet. 
Physiology of the central nervous system in Nereis , Lumbricus and 
Hirudo ; Steen-Maxwell. 
Morphology of the nervous system (central, sympathetic and inter- 
muscular) in Nephelis ; Bristol. 
Arrangement of nerves in proglottids of Taenia crassicollis and T. sagi- 
nata ; Cohn. — A rrangement of nervous system and its symmetry in 
Trematodes, young and adult; Bettendorf, p. 332. — Nervous system of 
freshwater dendrocoels ; Monti. 
Histology of the central nervous system in the Heteronemertines ; 
Montgomery (1). — Nerve-cells with centrosome and sphere in a Polychset; 
Lewis (1). 
Sense Organs. 
Eyes: of Ampharetidce ; Fauvel (3): of free-living Polychaites; 
Schreiner. — L ight-perceiving organs in the parapodial gill-lobes, bases of 
palps, prostomium and several of the anterior segments of Nereis ; Langdon. 
— Organs of sight in Platyhelminths, especially in Triclad Turbellarians, 
and in leeches; Hesse (2, ii & iii). — Sensitiveness of pigment-cells to light 
in leeches; Johannson. 
Auditory sense-cells: in Pontoscolex ; Eisen. — M ulticellular sense-organs 
with hairs at peripheral end of cells in Maldanidce ; Lewis (3). 
Sense-cells of suckers of Trematodes ; Bettendorf. 
Genital System. 
Opening of genital sac into coelom in Sternaspis ; Goodrich (2). — Ciliated 
Organs of Polychcetes; Goodrich (1). — Similarity of copulatory apparatus 
in both sexes in a Capitellid; MIcsnil (1). — Leech-like penis in a new 
species of Perichceta ; Benham. 
Genital system of Cestodes; Braun (3) pp. 1407-1461 : of a genus with 
the vagina opening both dorsally and ventrally; Diamare (1), Jacobi (1). 
— Genital organs of a monostomous trematode like those of a Distomid ; 
Jagerskiold (3). 
Origin of gonads in nemertines ; Montgomery (2). 
Genital organs of a prorhynchid turbellarian with the gonad on one 
side, and penis of £ directly piercing the body wall and ovary of the 
9 without there being any special aperture; Haswell. — S tructure of 
male genital organs in Stenostoma\ Sabussow. — T wo apertures, one in 
a backward prolongation of the oviduct, in a new genus of Polyclad 
(Polyporus)\ Plehn. 
“ Parovarium ” of certain Triclads distinguished from the true ovarium ; 
Bergendal (2). 
Genital organs (<$ only) of Ctenoplana\ Willey (1). 
Reproduction. 
Of Ampharetidce ; Fauvel (3) p. 127. 
Asexual reproduction : (by branching) in Dodecaceria concharum ; Mesnil 
& Caullery (1). — Asexual reproduction in Chcetogaster diaphanus (histo- 
logical account); Bock: in a cysticercus in the mole; Bott: of another 
in the mouse; Braun (1) : in Nemertines (fission in Linens gesserensis and 
its relation to the process of sexual reproduction) ; Brown, A. 
Ovigenesis in Sternaspis ; Child (3). — Reduction of chromatin in ovi- 
