242 



M. A. Stecker on anew Genus of Arachnida. 



and Oibocellinoi) essentiallj diifeiing from each other. The 

 most important distinctive characters are : — 



Family K. 

 ( CypJiophtlialmvKP. ) 



Body ovate, convex above, flat 

 beneath, entirely covered with a 

 granulated chitinous shield. 



First pair of maxillary palpi 

 6-jointed, filiform, each in union 

 at the point of insertion with a 

 pyramidal bod}^ (maxillary pyra- 

 mid). 



The coxfe of the second pair of 

 maxillary palpi and of the three 

 pairs of legs completely coalesced 

 with the pectoral pieces. 



Two eyes, placed upon obliquely 

 ascending conical tubercles. 

 One pair of stigmata. 

 Spinning-glands not present (?). 



Species : Cyphophthalmus duri- 

 coritts, Jos., C. corsmis, vSim., C. 

 cimiciformis, Oambr.*, Stylocellus 

 aumatranus, Westw.t 



Family B. 

 (GibocelliiKT.) 



Body elongate-ovate, moderately 

 convex above and beneath, not 

 coriaceous. 



First pair of maxillary palpi fili- 

 form, 5-jointed, without (?) maxil- 

 lary pyramids. 



All the hypopodia meeting in 

 the middle line of the body. 



The coxae of the second pair of 

 maxillary palpi and of the three 

 pairs of legs firmly soldered to the 

 pectoral pieces, but yet indicated 

 in their contours by a deep furrow. 



Four eyes, placed in the same 

 way upon conical tubercles. 



Twii 2^"ii's of stigmata. 



Spiuuiug-glauds at the com- 

 mencement of the abdomen. 



Species : Gibocelltim sudeticuni, 

 mihi. 



For the new genus, whicli I name GihoceJlmn (a synonym 

 of Gyplioiylitlialmus) ^ from its having its eyes upon conical 

 tubercles, I establish the following diagnosis : — 



GiBOCELLUM, gen. nov. 



Cephalo thorax triangularis, siapra convexus umbone semicirculari 

 insignis, qui ex apice retro posito paulatim ortus et antrorsum 

 divcrgeus intra gibbos oculigeroa in inferiorem thoracis supcrficiem 

 transit. Hypopodia omnia parum convexa, coxis inconcusse ad- 

 haerentibus, anticorum pedum oblonga, angustissima, alteroriim 

 clavata, tertiorum prope pernaeformia, posticorum maxima, in- 

 crassata, cyathiformia. Stigmata quatuor in angulis secundi et 

 tertii arcus abdominalis lateralibus conspicua. Glandular aranearise 

 ad basin abdominis apparent. 



The specific name I derive from the locality of the new 

 Arachnid (the Eiesengebirge, a part of the Sudetes), and 

 give the following diagnosis of it : — 



* Ann. & Mag. Nat. Hist. 1875, ser. 4, vol. xvi. pp. 383-389. 

 t Thesaurus Entom. Oxon. 1874. p. 200. 



