168 
ZOOLOGICAL LITERATURE. 
ctatus (Sauss.) j Eubyurus (Koch), inch P. erythropygus (Brandt) ; Oxy- 
DESMUS (subg. n.), inch P. tricuspidatus (Pet.) and Jlavomarginatm (Pet.) ; 
Pachyubus (subg. n.), inch P. hlugii (Br.), P. margaritaceus and squam-^ 
matus (ICoch), and a new species; Stenonia (Gray), inch Odotitodesmus 
(Sauss.), with P. denticulatm (LeGuilh), meymii (Br.), margaritiferus (Eydoux 
& Gerv.),y«y«wMS (Sauss.), and ? fuscus (Kocb), Flatyrhacus (Kocb) with P. 
Jimhriatus (Pet.), and three new species, and Acanthodesmus (Pet.), witli 
the species described by Peters ; Eontabia (Gray), inch P. virginien&is 
(Drury), Umax (Sauss.), montezuma (Sauss.), &c. ; RHACmnoMOBPHA 
(Sauss.), inch P. tarascus (Sauss.) ; Oxyubus Leptodesmus (Sauss.) 
and inch Rhacophorus (Sauss.), — of this subgenus the species are P. gracilipes 
(Humb. & Sauss.), thioaitesii and saussurii (Humb.), helaarti (Humb.), carneus 
and mhterraneus (Sauss.), couloni (Humb. & Sauss.), sallei, aztecus, and ver- 
miformis (Sauss.), natteret'i and zelehori (Humb. & Sauss.), and two new 
species; Stbongylosoma (Brandt), inch P. palliq^es guerinii 
and four new species; Icosidesmus (subg. nov.) with one new species; 
Polybesmus (sens, str.) with P. compla^xatus (De G.), and collaris (Kocb) ; 
Odontotbopis (subg. nov.), inch P. clarazianus (Humb. & Sauss.) ; and 
Rhachis (Sauss.), inch P. viridis (Sauss.). 
Cyclodesmus, g. n., Humbert & Saussure, Rev. et Mag. Zooh 1869, p. 149. 
Body suboval, much elongate, rolling up into a compressed globe, broader in 
front, subcompressed at apex ; first two segments flattened, first trapezoidal, 
nearly as broad as bead ; third very large, with lateral lobes produced down- 
wards; pygidium compresso-fomicate. Sp. C. aztecxis, sp. n., Humb. & Sauss. 
1. c. p. 149, Mexico. 
Polydesmxts. The new species described by Humbert and Saussure (/. c.) 
are : — P. (Pachyurus) granosus, p. 674, Moluccas ; P. {Stenonia) annectensy 
p. 677, Moluccas ; P (>S.) insidarisy p. 678, Moluccas ; P. {S.) pfeifferce, 
p. 680, Batavia; P. (Oxyurus) haastii, p. 683, Auckland, N.Z.; P. (O.) 
cyprius, p. 684, Cyprus; P. {Strongylosoma) syriacus, p. 686, Syria; P. (S.) 
persicus, p. 687, Persia; P. (S.) hatavice, p. 688, Java; P. {S.) novarce, 
p. 689, Auckland, N.Z. ; and P. {Icosidesmus) hochstettm i, p. 690, Auckland. 
Sqihceriodesmus gracilisy sp. n., Humbert & Saussure, Rev. et Mag. de Zooh 
1869, p. 149, Mexico. 
Polydesmus. Humbert and Saussure (/. c.) describe the following new 
species of this genus : — P. {Fontaria) simillimtis, p. 150, P. (P.) mystecus, 
ibid., P. (P.) acolhmtSy ibid., P. (P.) zendaluSy ibid., and P. (P.) nahmiSy ibid., 
Mexico ; P. {Oxyuinis) coidoniy p. 161, Cuba ; P. (0.) sumichrasti, ibid., P. (0.) 
orizabcBy ibid., and P. (O.) intermedius, ibid., Mexico; P. {Odontotropis) da- 
razianuSy p. 162, La Plata; P. {Tropisoma) coccineuSy ibid., Mexico; P. {Ra- 
chidomorpha) uncinatuSy ibid., Mexico ; and P. {Scytonotus) looodianuSy ibid., 
Mexico. 
Platydesmus mexieanus, sp. n., Humbert & Saussure, 1. c. p. 156. 
JULID^. 
Spiroholus. Humbert & Saussure (Rev. et Mag. Zooh 1869, pp. 153-164) 
tabulate the Mexican species of this genus. 
ParajuluSy g. n., Humbert & Saussure, Rev. et Mag. Zooh 1869, p. 166. 
Allied to Juhts'y joint 2 of mandible in cf tumid; labium in S with median 
