chamberlin: myriopoda of the Australian region. o 



5. Cryptops mirus sp. nov. 



Type.— M. C. Z. 1,931. Society Islands: Tahiti, Tipaeni Valley, 

 29 September, 1899. Albatross. 



Color ferruginous. 



Cephalic plate overlapped caudally by the first dorsal plate, with a 

 pair of short sulci in front of caudal margin. Antennae unusual 

 because consisting of only seven articles which are unusually long. 

 First tergite with two longitudinal sulci, at least excepting across the 

 anterior border, other tergites bisulcate and mostly also with a deep 

 median sulcus and an oblique curved sulcus on each side. Second 

 tergite shorter than the first. Last tergite with caudal end triangular, 

 the sides of the caudal margin straight and the angle not at all rounded, 

 plate broadly and strongly depressed in front of the caudal angle. 

 Anterior chitinous, edge of prosternum nearly straight, slightly 

 indented at middle. Ventral plates coarsely though subsparsely 

 punctate, without cornicles or other such elevations or roughening; 

 each with a conspicuous cruciform impression, with the longitudinal 

 furrow much the stronger. Coxopleurae caudally rounded, short; 

 caudal margin with an uncertain number of spines, all but one having 

 been rubbed off the type, pores numerous, not reaching caudal margin 

 by a wide space. Last ^•entral plate narrowed caudad, caudal margin 

 truncate, with corners rounded. Anal legs missing. 



Length, 19 mm. 



6. Cryptops niuensis, sp. nov. 



T^PE.— M. C. Z. 1,942. Xiue Island, 25 November, 1899 (Trop. 

 Pacific Exped. Albatross). Paratypes.— M. C. Z. 1,946, 1,950, 

 1,954, 2,122-2,129, 2,169 — Fijis: Nadarivatu, Labasa, Turuca, 

 Somo Somo, Vanua Ava (\V. M. Mann). Solomons: Pamua, Wainoni 

 Bay, Auki, Fulakora, " Atta trip" (W. M. Mann). Hervey Islands: 

 Rarotonga (\V. M. ^Mieeler). 



Middle region brownish, head and first two plates and posterior 

 plates light ferruginous; most plates blackish along lateral borders 

 and the posterior ones in addition with a bigeminate median dorsal 

 stripe; dark markings on pleural region as well. 



Caudal edge of head overlapped by the first dorsal plate. Antennae 

 composed of seventeen articles. First dorsal plate not sulcate. Ter- 

 gites bisulcate from third caudad; in addition there is a median keel 



