ZOOLOGY AND BOTANY, MICROSCOPY, ETC. 
481 
N. cylindriformis, N. larviformis, N. rubra , Furcularia semisetifera, 
F. megaloccphala , F. rigida , Eosphora striata (large and conspicuous), 
Diglena inflata, D. revolvens, D. elongata , D. rugosa, Mastigocerca brachy - 
dactyla, Colurus pacliypodus , and C. tessellatus. As “ later additions ” we 
have Notops forcipata , Notommata lucens, N. gigantea, Diglena Hudsoni , 
and D. dromius ; the last, which is said to be very slender and graceful, 
has manners which “ amusingly resemble those of some of the predatory 
beetles.” 
Rotatoria of Greenland.* — Dr. D. Bergendal gives an account of 
the rotifers collected during a visit to Greenland in 1890 ; he enumerates 
altogether eighty-two species, of which a number are new. Of the three 
new genera Microcodides ( M . dubius sp. n.) wants the foot which is so 
characteristic of Microcodon , but in all other respects there is a great 
resemblance between the two genera. Hypopus ( H . Bitenbenki sp. n ) 
is a new genus of Notommatidse, which the author for some time thought 
to be the same as Hudson’s Notops hyptopus ; Hudson’s species is to be 
referred to the new genus, the affinities of which are rather with Notom- 
mata than Hydatina. The third new genus Diops is established for 
D. marina sp. n., which some may think to be a Furcularia or a Diglena ; 
there is a double frontal eye and the mastax has no fulcrum. The 
author describes his forms in ample detail. From his concluding 
remarks it is clear that he does not think he has exhausted the points 
of interest in the Rotiferous fauna of Greenland. 
Rotifera of the Gulf of Naples.! — Dr. E. v. Daday studied at Naples 
twelve species of Rotifers, including Furcularia neapolitana sp. n., 
Colurus rotundatus sp. n., and C. truncatus sp. n. Six of the twelve 
were already known from other seas. In all cases saccular salivary 
glands were found between gullet and gizzard, or beneath the gizzard. 
Some forms have ovary and yolk-gland, while others have also a uterus. 
No fertilized thick-shelled ova were found, and no males. Perhaps the 
conditions of marine life are normally such that neither are necessary to 
the continuance of the species. From the Baltic 50 species are known, 
from the North Sea 3, from the Mediterranean 13, from the Adriatic 2, 
from the Indian Ocean 2, and from the Pacific 1. Of marine forms, 
20 are free-living and 8 parasitic ; 5 species occur in the seas, in fresh 
water, and in inland seas ; 32 species occur both in fresh and salt water. 
The Rotifer fauna of inland salt water and of brackish water is to be 
regarded as transitional between freshwater and the sea. The author 
believes that Rotifers as we know them are secondarily marine and 
primarily freshwater organisms, though it is likely enough that their 
ancestors were originally marine. 
New Freshwater Rotifers.f — Profs. A. Wierzejski and 0. Zacharias 
describe three species — Bipalpus vesiculosus W. and Z., Bipalpus lynceus 
Ekrbg. (? Euchlanis lynceus Ehrbg.), and Mastigocerca capucina W. and Z. 
Of the first only the female form was studied, but the male was seen. 
The female has a sack-shaped body, rounded posteriorly, truncate in 
* Acta Univ. Lundensis, xxviii. (1892) IV. 180 pp. (6 pis.). 
f Math. Nat. Ber. Ungarn, viii. (1891) pp. 319-53; Math. Termes. Ertes. (Math. 
Nat. Anz. d. Akad.), viii. pp. 4-8. 
X Zeitachr. f. wiss. Zool., lvi. (1893) pp. 23G-44 (1 pi ). 
