22 Verm , 
XV. VERMES, 
amputation of head or tail respectively, with or without regeneration of 
segments, in Ophryotrocha , a Nais , and 3 Earthworms, there being no 
fresh ingrowth from ectoderm, and the new pharynx being formed from 
endoderm ; Rievel. — Same subject dealt with in a preliminary notice by 
Hepke in the Naidce, the alimentary canal being, however, according to 
him, as well as nervous system and muscle, formed from the ectoderm. 
Regeneration of parts not corresponding to the amputated parts 
(Heteromorphosis) in Planarians; Duyne. 
Variations and Anomalies. 
Variations in shape of dorsal cirri in individuals of the same species, 
or even in the same individual of Phyllodocidce ; Gravier. — Individual 
variation in the number of segments bearing crochet-chaetae in Spionidcu ; 
Mesnil (1) p. 135, &c. — Asymmetry in a Pygospio ; MAsnil (1) p. 179* 
in a Poly dor a , p. 198. — A specimen of Lepidonotus clava with the last 4 
elytra on one side replaced by dorsal cirri, the other side being normal ; 
Orlandi. 
Variations in position of clitellum, tubercuhe pubertates, and in 
arrangement of spermathecae in different species of Earthworms of 
Switzerland ; Ribaucouht. Asymmetry of spermathecae and sperm 
ducts of a Lumbriculid ; Smith. — An Earthworm bifurcated posteriorly; 
Acta Ac. Chili, vi, pp. v & lxxiii. — Abnormalities in regenerated parts of 
Earthworms; Hescheler : of Planarians ; Duyne. 
Irregular segmentation in Cestodes ; Ariola (3). — Five specimens of 
T. serrata all from one dog, with proglottids very much fused — ip. one 
case as many as 34 posteriorly all in one piece ; Neumann (1, No. 4). — 
399 specimens of Anoplocephala plicuta in a horse, almost all with 
anomalies ; Bernard. — Abnormalities in Cysticercus cellulose ; Neumann 
(1, No. 3). 
Abnormal eggs and embryo in Ascaris ; Zoja ; zur Strassen. 
Physiology. 
The physiology of muscle and nerve in Sipunculus nadus , with curves 
of isotonic and isometric contractions of the retractors ; Uexkull. 
The functions of the supracesophageal, subcesophageal, and central 
nerve-cord in Nereis, Hirudo , and Lumbricus , compared with one another ; 
Maxwell. — Functions of septal glands of Oioenia ; Gilson. — Regulation 
of dorsal pores of Earthworm by nervous system, their function ; Keng. 
— Endoplasmatic secretion in Enchytraeids ; Goodrich. — Function of the 
chloragogene cells of Earthworms probably for storing food material ; 
Schneider (1). 
Physiology of fresh-water Leeches ; Kowalevsky, A. (2) & (3). 
Medical Notes. 
Action of Leech-extract on blood in preventing coagulation not anti- 
septic but due to stimulation of the phagocytes ; Bose & Delezenne. 
Toxic action of Cestodes and Nematodes in man and domestic animals ; 
v. Linstow (2). 
Humau Tapeworms ; Magalhaes, Sonsino & Zsciiokke, Ward. — A 
death due to the presence of a Cysticercus (with hypertrophied develop- 
ment of the scolex) in 3rd ventricle of brain ; Kraltek & BOhmig. 
