BIOLOGY. 
Verm. 25 
Classification. 
Systematic Phylogeny of the Invertebrata ; the Platyhelminthes re- 
garded as Ccelenterates ; the Rotatoria , Strongylaria and Frontonia as 
composing a Phylum Vermalia ; the Chcetopoda as forming one of the two 
branches of the Phylum Articulata\ Haekel. 
Position of Spirorbis amongst Serpulidce (p. 218) and Phylogeny of the 
different species of Spirorbis; M£snil & Caullery (4) pp. 202-207. 
Connecting links between Arenicolidce and Maldanidce , either serving 
to unite these two families into one or to be regarded as the types of a 
new, intermediate, family ; M^SNIL (2, iii). 
Systematic position of Ctenodrilus and its relation to Cirratulids ; M^snil 
& Caullery (2). 
Genealogical tree to shew the relation of the parasitic platyhelminthes 
to one another and their derivation from Rhabdoccel Turbellarians ; 
Lonnberg. 
Relations of Nemertines to other animals, especially to Turbellarians; 
Lebedinsky (2). — Classification of Nemertines, agreeing with Burger; 
Joubin: of Metanemertines, criticising Burger; Montgomery (2). 
New classification of the Nemathelminthes proposed : dividing them 
according to the form of the lateral field when present, those in which 
this contains an excretory vessel forming the family Secernentes , those in 
which it contains no vessel the Resorbentes, and those forms which have no 
lateral fields at all forming a third family Pleuromyaria ; v. Linstow (3). 
New classification of Gordiidce: — their relation to the Nemathelminthes; 
Camerano (3). 
Habits, &c. 
Tube-building in Ampharetidce ; Fauvel (3) p. 25. 
Commensalism and symbiosis of Polychaetes in different parts of the 
world; Griffin & Harrington, and Harrington. 
Self-amputation in earthworms; Hescheler (1), Joest, Michel (5), 
Morgan: in marine worms ; Hescheler (1) : in Planarians; Randolph. 
Tenacity of life in earthworms; Joest, Weir. — Resistance to drought of 
aquatic oligochaetes and leeches in Mexico; Seurat. — Habits of Bipalium 
Icewense ; Hogg. 
Phosphorescence in Polychaetes; McIntosh (2. — 1): in earthworms; 
Lloyd-Bozward. 
Egg-laying in Sagitta , at different hours of the day in different species ; 
Kenyon (1). 
Parasites. 
Of Polychaetes : a new Copepod parasitic on Poly cirrus aurantiacus ; 
Brumpt. — Effects of Monstrillidce on their hosts in causing wounds and 
possibly thus assisting in the process of fission ; Giard (1) & (2). — Three 
Sporozoa parasitic in Capitella capitata; Caullery & M^snil (1). — A 
new parasite in the gregarmes parasitic in Spio ; Caullery & M^snil (2). 
Of leeches: Protozoa parasites; Bolsius (2). — Green algae parasitic in 
oviducts of Epibdella hippoglossi ; Schott. 
A glugeid ( Pleistophora sp.) infesting the Brachycoelium sp. living inside 
the shells of Donax and Telhna ; L^ger. 
Seven species of Infusoria commensal on Oligochaetes, Polychaetes and 
Planarians; Craig. — Phagocytosis in Oligochaetes; Cu^not (1). 
Life-history of Ciliated “urns” of Sipunculus and of certain “enigmatical 
vesicles” also found in the ccelomic fluid ; Gruvel & Kunstler, 
