BibUographical Notice. 83 



cable were based upon observation of living examples, or merely 

 iipon the stud)' of museum specimens. 



Family Onisci, Section Oniscoidea. — The author divides into 7 the 

 old genus PorceUio, Lat., and leaves it an open question whether 

 the subdivisions should be accounted distinct genera or only sub- 

 genera. The subdivisions bear distinctive names and are treated as 

 genera in the text, but are numbered as subgenera. 1st. Cijlisticus, 

 Schnitzler (1853), 7 sp. 2nd. PorceUio, Lat. (1803), restricted 

 B.-L. (1879), 71 good species, 24 ill-characterized, 3 fossil, and 6 

 " catalogue species." The author ranks Lucasius mi/nnecojihilns, 

 Kinahan, amongst the seventy-one species ; but the propriety of so 

 dealing with it seems very questionable. His note as to its affinity 

 to Platyarthnis might even be amplified. 3rd. Hemilepistus, B.-L. 

 (1879), 10 sp., of which two are renamed. 4th. Metoponortlius, 

 B.-L. (1879), 35-37 good species and 3-5 sedis mcertce. 5th. 

 Hhyscotus, gen. nov., renamed, vice Stenomacriis, B.-L. MS. (1879), 

 1 sp. 6th. LeptotricJms^B.-L. (1879), 4 or 5 sp. : this name should 

 be abandoned, being preoccupied in zoology, e. g. Leptotriccus [a'/c], 

 Cab. Heine (1859), and Leptotlirix, Menge (1868). 7th. Batliy- 

 tropa, B.-L. MS. (1879), gen. nov., 2 good sp. and 1 nameless. 

 Plain arthrus, Bdt., 2 or 3 sp. The author deals with the old genus 

 Oniscus in the same manner as with PorceUio, dividing it into 5 

 named subgenera, which are treated as genera in the text. 1st. 

 Oniscus, L., restricted, 5 or 6 good species and 13 reputed sp. Of 

 these last 0. fossor, Koch, is probably nothing but a condition of 0. 

 murariiis, L. ; 0. minutus, Koch, is very nearly related to Philoscia 

 pulcheUa ; and the two species named by White should be referred 

 to Hemilepistus and PorceUio (restrict.) respectively, doubtless to be 

 reduced to synonymic insignificance. 2nd. Philoscia, Lat., 22 good 

 species, 4 sedis incertm. 3rd. Alloniscus, Dana, 8 or 9 sp. 4th. 

 LyprohiKS, gen. or subgen. nov., 3 sp. 5th. Sci/pha.v, Dana, 3 sp. 

 The author's transfer of S. intermedins, Miers, to the genus Philo- 

 scia is inadmissible. Deto, Guerin, 2 good species and 2 reputed 

 species. Of the latter D. Whitei, Kinahan, probably = et-7(iHrt to, 

 Guerin, and was founded upon specimens diff'ering in sex from that 

 figured by the last-mentioned author, because the number of seg- 

 ments armed with spines is larger in the male than ia the female. 

 [The reviewer states this from recollection.] Armadilloniscus, Ulja- 

 nin, 4 sp. and 2 sedis in'ertie. Sclcropactes, gen. nov., 3 sp. Then 

 two genera sedis incertce are referred to : — Acanthoniscas, 1 sp., and 

 Ourachoirus, 1 sp., both named from White's MS. by Kinahan. The 

 former is related to the genus Armadillo of this work. 



Family Ligiai.- — Triclioniscus is divided into 2 subgenera which are 

 named and dealt with as genera. 1st. Trichoniscus, Bdt., 8 sp., 

 and 1 in amber. 2nd. IJaplophthalmas, Schobl, 2 sp. Titanethes, 

 Schjiidte [Titanetlius], 1 sp. and 5 reputed sp. Ligidium, Bdt., 5 

 good sp. and 3 reputed sp. Ligia, Fab., 12 sp. known and 5 

 unknown to the author. tSti/lonisctts, Dana, 3 sp. tSti/mphalas, 

 B.-L. MS. (1879) gen. nov., 1 sp. Euphiloscia, Packard [1 sp. not 

 cited J. 



