^fyriopoda of the ^ Challenger^ Expedition. 125 



nuis without interruption from the fore part of tlie head to 

 the hinder end of tlie body ; moreover the hjwer surface and 

 lef,^s are also orange-yellow, these last being beautifully ringed 

 with black. The head, too, is deeply excavated, the stoma- 

 saddles are elevated, and the generative forceps has its distal 

 segment smooth and not serrate internally. 



Sc. planiceps sciims to have a wide distribution in South 

 Africa. Porath has recorded it from the Cape of Good Hope 

 and Caffraria, and the British Museum has a single example 

 which was collected by Gueinzius at Port Natal. 



Fam. Lithobiidae. 



Htnicops maculatuSy Newport. 



Henicops maculata, Newport, Trans, Linn. Soc, Zool. xix. p. 372, 



pi. xxxiii. tig. 27, and pi. xl. fig. 'i; id. Catalogue Myr. Brit. Mus. 



p. 22. 

 llenicupx impresms, Ilutton, Ann. & Mag. Nat. Hist. (4) xx. pp. 114, 



llo (1877) ; id. Tr. N. Z. Inst. x. p. 288 (1877). 

 Henicops viaculata, Haase, " Die Indisch-Austral. Chilopoden," Ab- 



haudlungen Dresden Museum, 1887, no. o, p. 30; Pocock, Ann. & 



Mag. Nat. Hist. (6) viii. p. lo4 (1891). 



Loc. Wellington (New Zealand). 



Henicops insignis, Pocock. 

 Henicops itisif/nis, Pocock, Ann. & Mag. Nat. Hist. (0) viii. p. lo4. 

 Loc. Juan Fernandez. 



Henicops tristani, sp. n. 



Colour fusco-ochraceous ; antennae entirely flavous, legs 

 flavous distally. 



Head convex from side to side, the anterior median portion 

 angularly notched. Antennce short, composed of 23-2-4 

 segments. 



CoxcB of the maxillipeds produced forwards mesially and 

 armed with 2 + 2 sharp teeth. Tergites smooth, with all 

 their posterior angles rounded and their hinder borders not 

 emarginate. Coxal pores rounded, 3, 3, 3, 2. Generative 

 forceps of the female with two short spurs rising just below 

 the apex of the internal posterior angle of the segment j claw 

 simple. 



Length up to 10 millim, 



Loc. Tristan Island (Tristan d'Acunha). 



This species is closely related to //. africanus of Porath, 

 from South Africa. It appears to difter, however, in having 



