ZOOLOGY AND BOTANY, MICROSCOPY, ETC. 
485 
swims or crawls ; the vitelline glands are always compact, but the testes 
may be (Alloiocoela) follicular. 
(3) MV The pharynx is posterior, the body much flattened ; 
the animal crawls ; the testes first (Alloiocoela), the vitelline glands later 
(Triclades), become follicular. 
Teratological Origin of two Species of Triclads.* * * § — M. P. Hallez, 
who in the course of his researches on the embryology of Triclads has 
had occasion to observe some monstrosities, calls attention to the anasto- 
mosis or partial fusion of the two recurrent branches of the enteron, 
and to the multiplicity of the pharynx. The former phenomenon is 
common in Dendrocoelum ; the latter is rare, and only three cases have 
been observed. Now the genus Phagocata presents all the characters of 
Planaria , save in its possession of a multiple pharynx, and the fusion 
of the enteric branches has been observed in Dendrocoelum Nausicase. 
The author suggests that these are both teratological species. 
Land Planarians.f — Herr G-. H. Lehnert prefaces an account of his 
observations on Land Planarians with a historical notice ; in this he, 
as some others, omits to notice the observations by Prof. Jeffrey Bell 
which were communicated to the Society in 18864 He distinguishes a 
variety of Bipalium Kewense, which he calls var. viridis , and he suggests 
that B. dubium described from West Sumatra is a synonym, and that 
that locality is the original home of the species, the habitat of which 
has not yet been certainly determined. The author’s observations have 
extended also to Geodesmus bilineatus , and he states very fully all that he 
has to say regarding these two species of Land Planarians ; of this species 
he thinks the original home must be the East or West Indies. His 
anatomical remarks bear on some points only of the structure of 
these interesting worms. A bibliography of 40 titles completes the 
memoir. 
Land Planarians from Lord Howe Island. § — Prof. W. Baldwin 
Spencer gives a description of the species recently collected by Mr. 
Whitelegge in Lord Howe Island. The absence of Geoplana, of which 
thirty-five species are known from the Australian continent, is of 
interest, as is the presence of a new genus, which it is proposed to call 
Cotyloplana ( C . whiteleggii and C. punctata spp. nn.). The genus 
Cotyloplana is diagnosed as having the body flattened, a sucker on the 
ventral surface close to the anterior extremity, and two eyes. Six new 
species of the genus BJiynchodesmus were also found. Anatomical details 
are promised in a succeeding paper. 
Anatomy of Ectoparasitic Trematodes.il — Herr C. Dieckhoff com- 
mences with an account of the vitello-intestinal canal, the characters of 
which he describes for Polystomum integerrimum , P. ocellatum , Octo- 
bothrium merlangi , 0. lanceolatum , Diplozoon paradoxum , and Axine 
belones. In all of these forms he shows that the organ is found, and 
* Comptes Rendu8, cxiv. (1892) pp. 1125-8. 
t Arch. f. Naturgesch., lvii. (1891) pp. 306-50. 
X See this Journal, 1886, p 1107. 
§ Trans. Roy. Soc. Victoria, ii. (1892) pp. 42-51 (2 pis.). 
|| Arch. f. Naturgesch., lvii. (1891) pp. 245-76 (1 pi.). 
