Dr. Lzacn's Arrangement of the Crustacea, $c. 377 
Spec. 1. Glomeris pustulata, Latr. 
Habitat in Lusitaniä frequens. 
Spec. 2. Glomeris marginata. 
Oniscus marginatus. Vill. Entom. iv. 187. t. 11. f. 15. 
Oniscus zonatus. Panz. Fn. Ins. Germ. ix. 25. 
Glomeris limbata. Latr. Gen. Crust. et Ins. i. 74. 
Julus oniscoides. Town. 
Stew. Elem. Nat. Hist. ii. 
Habitat in Europä sub lapidibus. 4 
Fam. II. Jurrpzs. 
Corpus in globum haud contractile. Antenne capitis paginae su- 
perne insertae. Oculi distincti. 
Gen.2. Jurvus. 
Corpus serpentiforme, cylindricum. Antennarum articulus secun- 
dus tertio longior. | 
The following species were all described from living specimens. 
The principal characters of distinctions are colour, size, and the 
form of the anal segment. The number of legs, which has been 
considered the most permanent character, is of no value, as it va- 
ries continually in the same species. 
Spec. 1. Julus sabulosus. 
J. nigro-cinereus lineis duabus dorsalibus rufescentibus, seg- 
mento ultimo mucronato, pedibus luteis.. 
Julus sabulosus. Linn., Fabr., Latr. 
Long. Corp. 14 unc. : 
Habitat in Europe sabulosis inter muscos et sub lapidibus passim. 
! Corpus longitudinaliter lineolatum, lineis vix subundulatis. 
Facies flava nigro-punctulata. . 
This 
