OLIGOCH^TA, HIRUDINEA. 
Verm. 89 
Mesenchytrmis parvus, anatomy, Ditlevsen, Zeitschr, wiss, Zool. Ixxvii, 
p. 440, figg. 46-48, n. sp. 
Microscolex elegans, distribution of sense organs, Bovard, Univ. Calif. 
publ. Zool. i, pp. 269-286, pi. xxiv-xxv. 
Monopylephorus trichochcetus, M. parvus, p. 427, figg. 21-26, anatomy, 
DiTLEVSEN, Zeitschr. wiss. Zool. ixxvii, n. spp. 
Nais eliguis, Weigelt, Mem. Cour. Ac. Belgique ixiv, p. 516, fig. 82. 
Nematogenia josephina, Costa Rica, Cognetti, Boll. Mus. Torino, No. 478, 
p. 3, n. sp. 
Notiodrilus georgiamis var. n. Icevis, Buenos Ayres, Rosa, Atti Soc. 
Modena (4) iv, 35, p. 9. 
N. silvestrii, Rio Santa Cruz, anatomy, Rosa, t. c. p. 7, n. sp. 
Ocnerodrilus {Ilyogenia) simplex, Costa Rica, Cognetti, Boll. Mus. Torino, 
No. 478, p. 3, n. sp. 
Pachydrilus claparedeanus, anatomy, Ditlevsen, Zeitschr. wiss. Zool. 
Ixxvii, p. 431, fig. 28, n. sp. 
Perionyx ceylanensis, Ceylon, detailed anatomy, Michaelsen, SB. Bohmisch. 
Ges. 1903, xl, pp. 6-11, 2 figg, n. sp. 
Plutellus uzeli, Peradeniya, Ceylon, in Notoscolex, Michaelsen, t. c. p. 4, 
3 fig., n. sp. 
Psammoryctes illustris, P. fossor, pp. 416-419, fig. 15-20, Ditlevsen, 
Zeitschr. wiss. Zool. Ixxvii, n. spp. 
Stylaria lacustris, regulation. Harper, Biol. Bull, vi, pp. 173-190, 16 figg. 
ThamnodriliLS henkami, p. 6, T. ophioides, p. 6, T. nemoralis, p. 7, T. 
micrurus, p. 8, T. heddardi, p. 8, T. tuherculata, p. 9, T. magnus, 
p. 10, T. acanthinurus, p. 10, T. agricola, p. 11, T. validus, p. 12, 
T. grais, p. 12, T. tutus, p. 13, T. rigeophilus, p. 13, T. euzonus, p. 14, 
T. agilis, p. 14, Ecuador, Cognetti, Boll. Mus. Torino xix, No. 474, 
n. spp. 
Trichodrilo'ides n. gen. for T. interinedius n. sp., Orne, Fauvel, C.R. Ass. 
Franc, xxxii 1, p. 221. 
Trinephrus krcepelini, Central Ceylon, anatomy, Michaelsen, Mt. Mus. 
Hamburg xxi, p. 128, 1 fig., n. sp. 
Tuhijicidije parasitised by Actinomyxidoe, Caullery & Mesnil, C.R. Soc. 
Biol. Ivi, pp. 408-410 ; Tubifex, parasites of, L6ger, C.R. Soc. Biol. 
Ivi, pp. 844-846, 4 figg. ; Tuhifex, Marschall Island, Schnee, Zool. 
Jahrb. Syst. xx, pp. 387-412; T. tuhifex, parasitised, Leger, C.R. 
Soc. Biol. Ivi, pp. 846-848. 
T. marinus, p. 421, fig. 9 & 10, Ditlevsen, Zeitschr. wiss. Zool. Ixxvii, 
n. sp. 
HIRUDINEA. 
[The following memoirs relate to Hirudinea : — Apathy (11), Arnesen 
(13), AzouLAY (16), Billet (25), Brumpt (55), Fage (134), Hemingway 
(191), Holmgren (201), Kershaw (230), Livanow (270), Nobre (333, 334), 
Pj^rez & Gendre (348, 349), Scharff (396), Schuberg (407), Schuberg 
& Schroder (406), Scriban (414), Spiess (434, 435), Yakhontov (478).] 
General Biology. 
Morphology, Livanow (270). 
Anatomy and histology of the digestive organs of Aulostoma, Spiess 
(434). 
Histology of digestive epithelium in Hoemopis sanguisuga, Spiess (435). 
Muscle fibres of BrancheUion, Perez & Gendre (349). 
