26 C. BOVALLIUS. ASELLIDZ. 
Diagn. Corpus elongatum, deplanatum. 
Caput transverse ovatum, non, vel leviter rostratum. 
Oculi conspicui. 
Antenmne primi paris breves, latitudinem capitis vix superantes, 
flagello multi-articulato instruct2e. 
Antenne secundi paris longitudinem corporis equantes vel super- 
antes. flagello multi-articulato instructze. 
Mandibule valide, palpum tri-articulatum gerentes. 
Latera segmentorum pereii non producta, bases pedum non teg- 
entia. 
Pedes pereii primi paris subceheliformes, ceteri subequales gres- 
sorii. Dactyli pedunculati bi-unguiculati. 
Pedes plei primi paris femin&g laminam unicam formant. 
Pedes uwri styliformes, ramis angustis. 
The body oblong, flattened. 
The head transversally ovate, with a very small rostrum, 
or without rostrum. 
The eyes are distinct, round. 
The first pair of antenne are short, scarcely longer than 
the breadth of the head. The flagellum is multi-articulate. 
The second pair of antenne are about as long as the body, 
or longer. The flagellum is multi-articulate. 
The mandibles are strong, provided with a three-jointed 
palp. 
The lateral margins of the pereional segments are not 
produced, not covering the bases of the legs. 
The first pair of pereiopoda are subceheliform, the follow- 
ing subequal, walking legs. The dactyli are pedunculated, 
bi-unguiculate. 
The uropoda, are styliform, with two narrow rami each. 
1. Ianira maculosa. ÅLEACH. 
Syn. 1813. Janira maculosa. LEACH. »Crustaceology». The 
Edinburgh. Encyclo- 
pedia. Vol. 7, p. 434. 
1815. > : ? >A tabular view» etc. 
Trans. of the Linn. Soc. 
Vol VLP: od 
1519. > > > SAMOUELLE. The Entomo- 
logists useful Compen- 
dium. p. 110. London. 
