BIHANG TILL KK. SVICVET.SAKADA HANDL. BAND 11; NO: 15. 7 
Latera segmentorum perii non, vel paulo producta. 
Pedes pereii primi paris subcheliformes, ceteri subequales, gres- 
sorii. Dactyli pedunculati, uni-unguiculati. 
Pedes plei primi paris femin& laminas duas parvas formant, 
ceteros non tegentes. 
Pedes uri styliformes, ramis binis angustis. 
The body is oblong, depressed. 
The head is broad, rounded, without rostrum. 
The eyes are distinct, lateral. 
The first pair of antenne equal a fourth of the length of 
the second pair. 
The second pair of antenne are about as long as the body, 
tbe flagellum is multi-articulate. 
The mandibles are strong, with a three-jointed palp. 
The lateral margins of the pereional segments are a 
little produced. 
The first pair of pereiopoda are subcheliform. The follow- 
ing subequal, walking legs. The dactyli are pedunculated, 
uni-unguiculate. 
The first pair of pleopoda of the female consist of two 
small lamine, not covering the following pairs. 
The uropoda consist of styliform peduncles with two 
narrow rami each. 
1. Asellus aquaticus. LINNÉ. 
Syn. 1761. Oniscus aquaticus. LINNÉ. Fauna Suecica. Ed. 2:da. 
p- 500. N:o 2061. Stockh. 
1764. Asellus > > GEOFFROY. Histoire abregée des 
Insectes, etc. Tome 2:me, 
Pp: 6r2.v Paris: 
1767. Oniscus » > Systema nature. Ed. 
12:ma. p. 1061. Stock- 
holm. 
1776. > » 2 O. F. MÖLLER. Zoologi&e Danice 
Prodomus. N:o 2365, p. 
97. Copenhagen. 
1778. Squilla asellus. > DE GEER. Mémoires pour ser- 
vir a VPhistoire des In- 
sectes. Tome T7:me, Pp. 
496, pl. 31, fig. 1. Stock- 
holm. 4:to. 
