On new Genera and Species qf Scolopendridae. 221 



(11) W. C. M'Tntosh. Review of ' A Treatise on the Common Sole,' 

 by J. T. Cunningham. Ann. & Mag. Nat. Hist. Dec. 1890. 



(12) IwAKAWA. " On the Genesis of the Egg in Triton" Quart- 

 Joum. ]\Iicr. Sci. vol. xxii., 1882. 



(13) E. A. ScHARFF. " On the Intra-Ovarian Egg of some Osseous 

 Fishes," ibid. vol. xxviii., 1887. 



(14) C. K. HoFFiiAXX. "Zur Ontogenie der Knochenfische," Verh. 

 Konink. Akad. Amsterdam, 1883. 



(15) Hexry V. Wilson. " On the Development of the Sea-Bass 

 {Serranus atrarius)," Johns Hopkins University Circulars, vol. ix. 

 no. 80, 1890. 



(16) G. Brook. " The Formation of Germinal Layers in Teleostei," 

 Trans. Roy. Soc. Edinb. vol. xxxiii. pt. 1, 1886. 



(17) John A. Ryder. "The Origin of the Pigment-Cells which 

 invest the Oil-drop in Pelagic Fish-Embryos," Amer. Naturalist, 

 Extra, November 1886. 



(18) . "A Contribution to the Embryography of Osseous Fishes, 



&c.," Report of the U. S. Fish Commission for 1882. 1884. 



(19) A. E. Shipley. " On some Points in the Development of Petro- 

 mijzon Jluoiatilis,'^ Quart. Journ. Micr. Sci. vol. xxvii., 1887. 



(20) Hector F. E. Jtjngersen. " Beitrage zur Kenntniss der Ent- 

 wickelung der Geschlechtsorgane bei den Knocheufischen," Arb. 

 au3 dem Zool. Zoot. Inst. WUrzburg, Bd. ix. 



XXIV. — Notes on the Synonymy of some Species of Scolo- 

 penclridge, with Descriptions of new Genera and Species of 

 the Group. By K. I. POCOCK, of the British Museum 

 (Natural History). 



[Concluded from p. 68.] 



[Plate v.] 



Arthroehabdus, gen. nov. 

 {apdpov, a joint, and pd^dos, a staff.) 



Head-plate entire, without sulci, not covered posteriorly by 

 the first dorsal plate, but separated from it mesially by a space 

 occui)ied by a horny membrane, which is united to the first 

 tergite and appears to represent the basal plate. 



Eyes, mouth-parts, and stigmata as in Cormocej^halus. 



Anal somite resembling that of Cupipes, the pleurae being 

 truncate, the legs stout, and the claw lung and serrate. 



Other characters, which may or may not prove to be of 



