49 Verm. 
Subject Index. — Annelida, etc. 
1827 
d’apr&sl’origine do la queue de la souche 
chez les Sy Hides ( Syllis spp. and Try- 
panosyllis zebra ) ; Michel, 302. 
Regencrationsvorgange bei Lumbri- 
ciden. Regeneration des Hinterendes ; 
Zielinska, 497. 
Spermatogenesis, Oogenesis, etc. 
Sur la Syllis vivipara et le problemc 
de sa sexualite ; Michel, 297. 
Spermatogcnese chez les Oligoch&tes 
( Lumbricus and Pheretima ); Hesse, 
187. 
Protandrie chez les Syllidiens ( Grubea 
protandrica n. sp.); du Plessis, 350. 
La polyspermie chez Protula meil- 
haci ; Sontus, 423. 
Die Entwicklung des Eies von Tomo- 
p ter is helgolandica ; Dons, 106. 
Embryology. 
Das Blutgefrissystcm der Oligochaten. 
Embryologische Untersuchungen ; Ster- 
ling, 444. 
Artificial parthenogenesis in Aricia ; 
Kostanecki, 231. 
Larval Forms. 
Larval forms of Polychaetcs ( Spioni - 
dae and Pohjdoridae ) ; Graveley, 160. 
Detailed comparative account of 
structure of Polychaete larvae ^pelagic) 
found at Port Erin ; Gravely, 161. 
ETHOLOGY. 1819 
General Biology, Habits. 
Tho annual breeding-swarm of the 
Atlantic palolo Eunice jucata ; Mayer, 
286. 
Amphitrite ornata Verrill, egg-laying 
habits ; Scott, 405. 
Luminosity. 
Die Leuchtorgane von Acholoe as- 
tericola Clprd. ; Kutschera, 233. 
Leuchten von Ilenlea ventriculosa ; 
Walter, 472. 
Commensalism and Parasitism. 
A Polychaete ( Ophiodromus jlexuo- 
sus) commensal with Synapta; P6rez, 
339. 
Haplosyllis cephalata ectoparasitic 
on a Eunicid ; Treadwell, 458. 
Ectoparasitic on Notolhenia micro- 
lepidota a provisionally new genus of 
fish-leech, Notobdella ; Benham, 26. 
Ectoparasitic on Ceylon Chelonia, 
two new leeches, Ozobranchus shipleyi 
and Glepsine ceylanica ; Harding, 174. 
Sur le parasitisme de la larve de Pol- 
lenia rudis Eab. dans Allolobophora 
chlorotica Savigny ; Keilin, 224. 
In the Polychaete Spio mecznxkowia- 
nus, another Polychaete, endoparasitic, 
Oligognatus parasiticus n. sp. ; Cerruti, 
71. 
ETIOLOGY. 1823 
Variation. 
Variation sabelliformo do Spirogra- 
phis Spallanzani Viv., h Saint-Vaast 
la Hougue ; Fauvel, 118- 
Abnormalities. 
Sur des cas de cephalisation anor- 
malement multiple chez les Syllidiens 
(esp. Syllis arnica ) en stolonisation ; 
Michel, 299. 
Phylogeny. 
Phytogeny and affinities of the Sahel- 
laridae ; Gravier, 167. 
DISTRIBUTION (GEOGRAPHY). 
1827 
1. Recent. 
General. 
La distribuziono geografica dellc 
Paraonidae ( Paraonis and Aricidea ) ; 
Cerruti, 70. , 
Europe. 
British and Irish Oligochaetes, with 
new forms; Southern, 424. 
British Spionidae, with new forms ; 
also new Spionidae from the “ Porcu- 
pine” Expedition (1869 and 1870); 
M Intosh, 287. 
Annelid (Oligochaete) Fauna of Wor- 
cestershire ; Friend, 128. 
Isle of Wight, Polychaetes ; Pollard, 
354, 
(n-U091o) 
b 17 
