1886. | Zoölogy. 1065 
that region, of which thirteen are now described for the first time. 
Some anatomical and histological notes are given. Bell calls 
attention to the fact that in the land planarians the form of the 
head is very variable and cannot be used, as is often done, as a 
basis of generic division. He also states that Bipalium is sensitive 
to light, and if the light be too strong the specimen is killed. 
Collet describes (Proc. Zool. Socy., 1886) a new species of Echino- 
rhynchus (Æ. ruber) from Rudolphi’s rorqual (Balænoptera bore- 
alts). He suggests that its early stages may be passed in Æu- 
phausia inermis, one of the Thysanopoda. 
Turtonia and Cyanium are distinct, the latter genus possessing 
Brachiopods——Miss Agnes Crane describes (Proc. Zool. Soc., 
London, 1886) a new species of brachiopod (Afretia Jraziert) from 
Port Stephens, New South Wales. 
Arachnida—G, Saint-Remy, at the meeting of the Paris 
Academy, Sept. 20, presented the results of his studies of the 
brain of the spider based upon the genera Tegenaria, Epeira and 
Phalangium. The brains of these forms have the same general 
plan ‘of organization as that of the scorpion, on which a report 
had previously been made. Adolph Horn describes the poi- 
son apparatus of twenty-one species of spiders in the Bericht of 
the Oberhessichen Gesellschaft for 1886. The poison glands 
consist of two elongate cylindrical ccecal sacs enveloped in con- 
nective tissue and spirally arranged muscles. Their ducts termi- 
nate near the tips of the mandibles. Grassi describes a new 
arachnid in the Bulletin of the Italian Entomological Society 
(Vol. xvir, 1886) under the name Kenenia mirabilis. He regards 
it as the type of a new order, Microthelyphonida. In general 
appearance the form stands nearest the thelyphonids, as the name 
indicates. Grassi points out twenty-four points in which it differs 
from the whip scorpions, 
` _ Ascidians—Sluiter describes fourteen new species of ascidians 
from Billiton island. For one of them a new genus, Styeloides, 
is proposed. 
Crustacea.—Professor C. L. Herrick gives (Bull. Denison Univ.) 
VOL. XX.—No. XII. 7 
