33 



with the lobes rather narrow, setous at the tip only. Maxillipeds smaller 

 than usual, masticatory lobes largely developed, laminar, broadly rounded at 

 the extremity, basal lobes narrowly produced, palp rather small, by far nut 

 reaching to the tip of the masticatory lobes, terminal joint obsolete. An 

 terior gnathopoda rather strong, prehensil, terminating with a powerful and 

 greatly inflated subcheliform hand ', posterior ones very slender, propodal joint 

 oblong, slightly produced at the end beneath the rudimentary dactylus, so 

 as forming an inperfect minute chela. Pefeiopoda extremely slender, the 

 penultimate pair the longest, !>rancial lamellae indistinctly folded transver- 

 sely on the one side. Incubatory lamellae very narrow. Last pair of nropoda 

 rather elongated, both rami narrow lanceolate and nearly subeipial. Telsoii 

 very short, entire. 



Reut/tr/,-*. The type of this genus is the form described by Sp. 



Bate and Westwood under the name of ())>ix tj_r<lrinnn><i. which however 

 shows only a very remote affinity to the Kroyeriaii genus ()pis, wherefore 

 Boeck saw himself n't to establish for it a new genus under the above name. 

 Its distinctive characters are among others the peculiar structure of 1 1n- 

 anterior gnathopoda, which somewhat resembles that in the young of Tn'.^-lii- 

 zostoma, the imperfect development of the palp of the maxillipeds, and the 

 structure of the last pair of uropoda and of the telson. 



2. Normania qvadrimana, (Sp. Bate & Westwood). 



(PI. 13, fig. 1). 

 Opis qvadr/HHDia, Sp. Bute and West-wood, British Sessile-eyed Crust. Vol. II, p. 503. 



Body somewhat compressed, with the back evenly vaulted. Cephalon 

 rather deep and nearly as long as the 2 anterior segments of the mesosome 

 combined, lateral corners only slightly projecting but distinctly angular. The 

 3 posterior segments of the mesosome much larger than the 4 anterior ones 

 Coxal plates scarcely deeper than the body, rounded interiorly; :>th pair con- 

 siderably lower than the preceding ones and almost twice as broad as deep. 

 Lateral corners of the 3rd pair of epimeral plates of the metasome evenly 

 rounded. First segment of urosome not produced dorsal ly. Kyes large, oval 

 in form. Superior antennae about the length of the cephalon and the :.' ante- 

 rior segments of the mesosome combined, 1st joint of the peduncle not twice 

 the length of the other 2 taken together, rlagellum composed of f> joints only, 

 accessory appendage very slender, triarticulate. Inferior antenna' in female) 

 about the length of the superior, tlagellum ^articulate. Anterior gnathopoda 

 with the basal joint very elongated, carpal joint constricted at the base and 

 forming inferiorly a narrow projecting lobe, propodos large and tumid, rounded 



