312 



Transactions. 



of maxillae (fig. 20) : inner ramus small, with a few simple hairs ; outer 

 ramus provided on the inner edge with a row of plumose hairs, and with 

 numerous simple hairs elsewhere. Labial palp 3-jointed, terminal segment 

 with plumose hairs on the inner side, terminal claw complex. Prosternum 

 (fig. 21) produced forward, narrowing slightly, with straight dental edges, 

 separated by a median sulcus and armed with from 4 + 4 to 6 + 6 even- 

 sized teeth. Tergal plates with angles distinctly rounded and posterior 

 margins straight, except in the posterior segments, where there is a 

 slight emargination. Spiracles as in Lamyctes. First to 12th pairs of legs 

 with tarsi entire, 13th to 15th pairs with tarsi biarticu'late. Tibial spur 

 present 1st to 13th legs. Coxa! pores on the last four pairs of legs. 

 Type : Wailamyctes trailli sp. n. 



Key to the Species. 



Eyes absent 

 Eyes present 



1. W. trailli sp. n. 



2. W. halli sp. n. 



The two species given in the key are in all respects, except in the 

 presence and absence of eyes, so much alike that I have no hesitation in 

 assigning them to the same genus. Both differ from Lamyctinus Silvestri 

 {Boll. Lab. Zool., R. Scuola Superiore d'Agric, Portici, vol. 4, p. 38, 1909) 

 in the presence of tibial spurs on the 13th leg, and in the form of the pro- 

 sternum, which in Lamyctinus is of the usual form found in Lamyctes. 



1. Wailamyctes trailli sp. n. (Figs. 18 to 24.) 



Colour (in spirit) light yellowish-brown. 



Head (fig. 24) without eyes. Antennae with 21 joints. Prosternum 

 (fig. 21) 145 times wider than long, dental edges straight, teeth 4 -f- 4 to 

 »6 -f 6. Coxal pores 2, 2, 2, 2. Gonopods of $ (fig. 22) with basal spurs and 



Fig. 22. — Gonopods of ? 



Fig. 23.— loth leg. 



Fig. 24.— Head. 



claws sharp and curved. First tarsal joint of 15th leg (fig. 23) 8-8 times 

 longer than wide ; femur 1*68 times as wide as tibia. Tibial spurs on legs 

 1 to 13. 



Length 9 mm. 



Loc. — Stewart Island (Walter Traill) and Waipara (G. Brittin). 



