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REPORT ON ZOOLOGY, MDCCCXLII : 
usually called the tongue, lies above the opening of the mouth, and 
therefore may he considered as the upper lip ; that, at least in the 
Argyroneta and Epeira, minutely investigated by him, the ring form 
of the stomach is only apparent, and that it arises from the anterior 
extremities having their points lying immediately upon each other, 
without, however, communicating with [iiberzugehen] each other ; that 
the heart of the spiders and scorpions possesses lateral openings, and is 
surrounded by a membranous reservoir, with which it communicates 
through these openings. 
The development of the Lycosa saccata has been observed by Rathke 
(Froriep. Notiz. xxiv. p. 165). A list of the Arachnida observed at 
Chusan has been published by Cantor (Ann. Nat. Hist. ix. p. 491) ; they 
belong to the genera Attus, Thomisus, Hypoplatea, Lathrodectus (?), 
Ulohorus, Tetragnatha, Epeira, and Phalangium, and are, with the 
exception of the Epeira fasciata, Walk., considered as new, and 
shortly characterized. 
ARANEiE. 
Blackwall (Ann. Nat. Hist. x. p. 407) has laid before the Linnaean 
Society of London his further observations on the British Spiders. 
DRASsiDiE. — Graells (Ann. d. 1. Soc. Ent. d. Fr. xi. p. 205) has made 
some excellent observations on the Malmignatte {Lathrodectus 1^-gut- 
tatus, Boss, malmignatus, Walk.), partly on its habits, and partly on 
its poisonous qualities ; the Malmignatte is found principally in the 
district of Tarragona, in Catalonia, where, however, it was unknown 
previous to 1830, but became a nuisance in the years 1830, 1833, and 1481. 
It makes an irregular net in small hollows, by means of which, and its 
poisonous bite, it overcomes insects which are many times larger than 
itself ; it also forms a neatly constructed cell, which is concealed beneath 
dry leaves, and serves as its lurking place. L. oculatus and erehus are 
found in the same places with the Malmignatte, and are of similar 
habits. The author remarks, that the Malmignatte years were also locust 
years. 
Mygalid^e. — Numbers four to six of the ninth volume of the Arach- 
nida, by Koch, contain only Mygalidce, viz., — M. avicularia, L., and 
hirsutissima, a new species from South America ; M. versicolor, zebra, 
Walk., diver sipes, plantaris, anthracina, lycosiformis, detrita, from 
Brazil; plumipes, from Surinam; rosea. Walk., from Chili; lata, ccesia, 
from Porto Rico ; drassiformis, incana, from St. Thomas ; cafreriana, 
funebris. Walk., from South Africa; javanensis. Walk., from Java; 
ursina, convexa, felina, locality unknown ; also Octinopus caffer, from 
the Cape ; loricatus from Mexico ; tarsalis and longipalpus from Monte 
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