HuTTON. — On New Zealand Stenopelmatidae. 229 



tibia, 13mm. <? , 11mm. ?; hind tibia, 30mm. (^ , 20mm. ?; 

 hind femur, 21:mm. ^ . Width of mesonotum, 10mm. 

 Locality. — Bounty Island, under rocks. (Fairchild.) 



Genus Gymnoplectron, gen. nov. 



Form large and slender. Head inclined under the body r 

 antennas slender, very long, approximated but not touching 

 a,t their bases ; the first joint large, longer than broad ; the 

 second shorter, rather inflated ; the rest cylindrical ; the hairs 

 very short, none on the basal joints. Fastigium narrow, 

 slightly sulcate. Fifth joint of the maxillary palpi con- 

 siderably longer than the fourth, which is about equal to the 

 third. Anterior border of the pronotum slightly rounded, 

 projecting over the occiput ; the posterior border straight ; 

 lateral lobes not projecting below those of the mesonotum. 

 Sternum narrow. Legs long and slender ; coxae of the fore 

 and hind legs nearly touching its opposite, the first segment of 

 the abdomen entirely behind the hind coxae ; those of the fore 

 legs spined. All the femora deeply grooved and spined below ; 

 fore femora with a small, blunt, coloured, apical spine on the 

 inner side ; middle and hind femora with a pair of blunt apical 

 spines. Fore and middle tibiae v»^ith two pairs of apical spines, 

 unarmed above. Hind tibiae with four pairs of apical spines, 

 of which the superior intermediate are twice as long as those 

 just below them, and the inner is longer than the outer ; the 

 superior and inferior pairs are small ; all four pairs are articu- 

 lated to the tibia, and all are without hairs ; below they are 

 rounded and unarmed, above they are flattened and armed 

 with long spines. First and second joints of the hind tarsi 

 terminating in a pair of rather strong spines ; first joint longer 

 than the fourth, but shorter than the other three together. 

 Supra-anal plate very short, the posterior margin slightly 

 concave. Cerci rather long and slender, erect. Subgenital 

 plate of male linear, rounded at the apex and grooved below, 

 projecting beyond the supra-anal plate ; styles short and 

 thick, inserted at each side of its base. 



Locality.— 'Nesv Zealand only. 



Gymnoplectron longipes. Plate XII., figs. 11, 11a; Plate 



XIII., fig. 11&. 

 Hcmideina longipes, Colenso, Trans. N.Z. Inst., vol. xix., 



p. 145 (1887). Macroixtthus ??iaa:MmfS, Buller, Trans. N.Z, 



Inst., vol. xxvii., p. 145 (1895). 



Head smooth ; fastigium rather low, broadening out below 

 the antennae and gradually passing into the front. Pronotum 

 margined, the inferior margins of the lobes horizontal, the 

 corners only rounded. Lobes of the mesonotum and metano- 

 ±um rounded, their anterior angles obliquely cut off. Inferior 



