4 Verm. 
„ XV. VERMES. 
incompleteness of Rievel’s observations recorded last year. Michel has 
two short papers (178) & (179) on the histological processes involved in 
the regeneration of the posterior-end in oligochaetes and polychaetes, and 
comes to the same conclusion as Hepke that all new tissue is derived 
from the ectoderm. 
With regard to the Hirudinea Blanchard’s report on the species in 
the Leyden museum (18), many of them from an old collection from the 
Dutch East Indies, and that on a new collection from the same locality 
(20) are important. He also reports on an E. African collection (17). 
Kowalewsky’s memoir on the physiology of the Glepsinidce , of which an 
abstract was recorded last year, is now published (141). Hesse (109 iii) 
has studied the eyes in 14 spp. and is able to give us a good account of 
their formation and structure. Johansson has a valuable memoir on the 
anatomy of the fish-leeches of Sweden (128) and also one on the circulation 
in two of them (129). Apathy (5) deals with the nature and function of 
the neck glands in Hirudo , and Bristol (36) has a communication on the 
morphology of the nervous system in Nephelis. 
LOnnberg (158) gives a genealogical tree to express his views with regard 
to the origin and relationships of the different parasitic Platyhelmintkes. 
The question of the nature of the epithelium is again raised by Bott (32) 
who is answered by Blochmann (22). A representative of a genus of 
cestode hitherto thought peculiar to Rodents has been found in a bird 
(84). Other remarkable bird-cestodes are described by Diamare (65 & 66) 
and Jacobi (116 & 117), and Braun (35) has concluded his account of the 
genital organs of cestodes for the “Thierreich” and begun the embryo- 
logy. The occurrence of trematodes in fresh- water fish, and the condi- 
tions that determine the same, is made the subject of memoirs by 
Hausmann (103) and Ratz (208). Jagerskiold (121) describes a new 
one-suckered trematode with anatomy like that of a two-suckered one. 
The minute anatomy of the muscular and nervous system of trematodes 
is ably treated by Bettendorf (14), while Cohn (54) has a note on the 
arrangement of nerves in the proglottids of cestodes. 
The part on Nemertinea for Bronn’s ‘Thierreich’ has been begun, and 
has fortunately been assigned to Burger (40). Joubin has written the 
article on the group fop Blanchard’s Treatise on Zoology (131). The 
anatomy of some of Verrill’s so-called “new” species is described by 
Montgomery (184), who also has papers on the histology of the central 
nervous system and connective tissues (181 & 182). He criticises (182) 
Burger’s classification of the Metanemertines, and both he and Lebedinsky 
(147) give information to throw light on the morphological significance 
of the body cavity in that group. Interesting excretory organs and their 
relation to the vascular system are described in Stichostemmci by Mont- 
gomery (183) and in a Tetrastemma by Bohmig (25). 
New land-planarians from Australia (239), New Zealand (64), the Fiji 
Islands (240), the Celebes (96), and S. America (95) have been described. 
Freshwater ones from E. Africa (24), and Illinois (266); and brackish- 
water ones from the Mediterranean (41). Willey (264) describes a most 
interesting new rhabdoccel which is asymmetrical and probably belongs 
to his group of originally radially symmetrical rhabdococls (Archiplanoidea), 
see (263). Jander’s investigations on the nature of the epithelium of 
the pharynx in Triclads is important (123), as are also those of Hesse 
(109 ii) on the organs for perception of light in all the different groups 
of Platyhelminthes in which such occur. Bergendal publishes an 
elaborate monograph on the genus Uteriporus (12). 
v. Linstow (154) suggests a new classification of the Nematoda , and 
describes new species (152 & 154). Stossicjh (244) has an important 
monograph on the Filarice and Spiropterce giving a good bibliography and 
describing 317 spp. belonging to the genera Filar ia t Spiroptwa, Oxyspirura , 
