chamberlin: myriopoda of the Australian region. 21 



than contiguous region. Anterior and median legs fulvous, posterior 

 ones somewhat darker; first four articles of antennae green, the others 

 fulvous. 



Nearest E. plafi/ccphalus (Xewport) and E. spinosu,<i (Newport). 

 Antennae consisting of twenty articles; articles longer than wide. 

 Differing from the two species mentioned in haAing the sulci of the 

 sternites sharply impressed from the second segment to the twentieth. 

 Last A'entral plate with but weak traces of a median sulcus; caudal 

 margin deeply exca^'ated. Coxosternal plate with 3 + 3 teeth or 

 with a stunted fourth tooth on mesal side of each series, teeth 

 bluntly rounded, not subdivided, presenting a characteristically differ- 

 ent appearance from the species mentioned. Paired dorsal sulci 

 beginning on third tergite but faint on this and the fourth plate. 

 Coxopleural processes exceeding the last ventral plate by about the 

 length of the latter or somewhat more; two apical points and one lat- 

 eral and one dorsal spine. None of legs with two tarsal spines in 

 type; nineteenth and twentieth with none. Femur of anal legs below 

 with two spines in outer row, two in inner, two on mesal surface and 

 two on dorsomesal edge, the distal dorsal process with a single point. 



Length, 125 mm. 



46. Etkmostigmus platycephalus (Newport). 



Heterostomu plaiycephala Xewport, Trans. Linn. soc. London, 1845, 19, p. 415. 

 Heterostoma plaiycephala + var. lugvhre Haase, Abhandl. Mus. Dresden, 1887, 



5, p. 92.1 

 Heterostoma hrownii + var. graciJe Haase, Ibid., p. 94.- 

 ? Heterostoma viridipes Pocock, Ann. mag. nat. hist., 1891, ser. 6, 7, p. 56.^ 

 Heterostoma loriae Silvestri, Ann. Mus. civ. Genova, 1894, 34, p. 631.* 

 Heterostoma platycephalum Attems, Semon's Forschungsrelse, 1898, 5, p. 509.* 

 Ethmostigtnus platycephalus Pocock, Willey's Zool. results, 1898, pt. 1, p. 62.^ 



Pocock, Ann. mag. nat. hist., 1898, ser. 7, 1, p. 327.' Ribaut, Abhandl. 



Senckenb. gesellsch., 1912, 34, 284.^ Attems, Bijdr. dierk., 1915, 20, p. 4.^ 



Localities. — New Guinea:^ Jobi,^ Dore,^ Moroka.^ Kei Islands: 

 Great Kei.^ New Britain.-' ^ Hermit Island.^ ' - Halmaheira.^ Ter- 

 nate.^ Ambon. ^ Ellice Islands: Rotuma.'' Society Islands: Ta- 

 hiti.^ Union Islands: Atafu (Duke of York) Island.^ 



47. Ethmostigmus pygomegas (Kohlrausch). 



Heterostoma pygomegas Kohlrausch, Archiv naturg., 1881, 47, p. 63. 

 Heterostoma rapax Attems, Semon's Forschungsreise, 1898, 5, p. 509. ^ 



Locality. — New Guinea.^ 



