81 



Gen. 19. TryphositeS, CI. 0. Sars, n. 

 Syu : Typliosa. Boeck, (e.K parte). 



Body slender, with large coxal plates, the 1st pair of which does not 

 differ in form from the succeeding ones. La.st pair of epimeral plates of meta- 

 some produced at the infero lateral-corners to a triangular upturned lobe. 

 Superior antennae slender, with the accessory appendage comparatively small. 

 Inferior antennae in female scarcely longer than the superior. Both pairs of 

 antennae, but especially the 2nd, greatly elongated in male. Epistome pro- 

 duced in the form of a lanceolate anteriorly pointing spine. Mandibles of mode- 

 rate size, molar expansion large and well developed, palp slender, originating 

 a little nearer the base than does the latter, terminal joint very narrow. 

 Maxillffi about as in Tryphosa. Maxillipeds with the masticatory lobe very 

 large, oblong oval, slightly denticulated on the tip and inner edge ; palp reach- 

 ing but little beyond the latter, dactylus elongated, claw-like. Anterior gna- 

 tliopoda of a similar slender form as in Tryphosa. Posterior gnathopoda ra- 

 ther elongated; carpus very narrow, linear; propodos large, oblong, dilated at 

 the middle, tip not produced beneath the minute dactylus. Pereiopoda unusu- 

 ally slender and elongated, especially those of the posterior pairs, the basal 

 joint of which is greatly ex]3anded. Last pair- of uropoda rather large, con- 

 siderably projecting beyond the preceding pair, rami denticulated and setous 

 in both sexes. Telson deeply cleft, each of the terminal lobes armed at the 

 tip with 3 denticles. 



Remarks. — The type of this genus is Anonyx longipes Sp. Bate, 

 which was referred by Boeck to his genus Tryphosa, though he remarks that 

 it differs markedly from the other species in the form of the epistome, so as 

 perhaps more ])roperly to Ije generically separated. Such a separation I think 

 is in fact fully jirstitied, since this form also differs from the species of Try- 

 phosa in several other characters of apparently generical value. 



33. Tryphosites longipes, (Sp. Bate). 



(PI. 28, fig. 3, PI. 29 fig. 1.) 

 Anonyx longipes, Sp. Bate. Catalogue of the Araphiixjda in the British Museum, p- 79, pi. XIII, fig 

 Syn; Anonyx ampulla, Sp. Bate (not Phipps) cf. 



Body rather compressed and of slender and elegant form. Cephalon 

 less deep than usual, lateral corners somewhat produced and acute at the tip. 

 Anterior coxal plates more than twice as deep as the body; 1st pair slightly 

 concaved at the anterior edge ; 4th pair considerably expanded below and an- 



