18 Verm. 
XV. VERMES. 
External Features, Head and Tail, with their Appendages. 
Homology of cephalic lobe and nuchal region in Polychaetes ; Raco- 
vitza : of anterior segments of A mpharetidce ; Fauvel (1). — Presence 
of ciliated bands to each segment in adult Phyllodocidce ; Heavier : in 
the adult, but not in the young, of Nerilla ; Pereyaslawzewa. 
Proboscis of Tetrarhynohidce comparod with hooked sucker of Echino- 
cotyle, and derived from the apical auxiliary sucker-grooves of the Tetra- 
bothriidce ; Pintner (1). — Structure of ventral warts of Gastrodiscus , 
their distinction from suckers ; Looss (2). — “ Caudicle ” suggested as a 
new name for the caudal papilla of Nemertines ; Montgomery (2). 
Integument. 
Histology and physiology of integument in Polychaet larvae, arrange- 
ment of ciliated bands ; Hjecker. — Five pairs of true chaetae-bundles and 
reserve chaetae in a Leech {Acanthobdella pellucida) ; Kowalevsicy, A. (1). 
Epithelium of Gestodes and Trematodes, epithelial cells sunk down 
into muscle-layers ; Blochmann. 
Muscular System. 
Of Nerilla ; Pereyaslawzewa. — Histology of circular and longi- 
tudinal muscles of Oligochaetes ; Obnorski. 
Muscular system of Cestodes ; Braun (3) p. 1301. — Derivation of 
muscles of scolex from those of strobila in Ichthyotcenia ; Riggenbach (1). 
— Relation of subcuticular- to parenchyme-muscles in Ligula ; LiiiiG 
(1) : relation of nervous to muscular system in Ligula ; Luhe (2). — 
Nerve terminations in muscles of pharynx of Dendrocoels ; Monti. 
Muscles of oesophagus of Ascarids and their microscopic structure ; 
Looss (1). 
Digestive System. 
Alimentary canal of Phyllodocidce ; Gravier (p. 342). 
Calcareous glauds of Earthworm ; Harrington. — Digitate coecum in 
a Perichceta ; Beniiam (5). 
Alimentary canal of Acanthobdella compared with that of Oligochaetes; 
A. Kowalevsky (1). — Microscopic structure of alimentary canal of 
Hirudo ; Rakowskiego. — Peripharyngeal and labial glands of Ilirudo 
and their function ; Bertelli. — Physiology of intestine of fresh-water 
Leeches ; A. Kowalevsky (3). 
Alimentary canal of a Polyclad (not a Cycloporus ) opening to the 
exterior by large pores ; Plehn (1, p. 141). — Peculiar branching of ali- 
mentary canal in another Polyclad, Thysanoplana , Pleiin, p. 162, and 
another with two pharynges, differing from one another in structure, 
ib. p. 167. 
Anatomy and histology of the oesophagus, with the three unicellular 
glands opening into it, in 10 species of A scar is ; Looss (1). 
Internal diverticula of intestine of a Sagitla looking like the external 
ones of other species inverted; Conant. 
