HANSEN, H. .1.: IIKMIMERÜS TALPOIDES WLK. 69 



plate (b), to which the not-jointed outer lobe (l'') is articulated. 

 Compared with the maxilla of MacJiilis the last-named plate turns 

 out to belong to the long plate at the exterior margin (cut oft" 

 from this by a secondary articulation), so that the two plates 

 together constitute the 3rd joint of the maxilla, and the outer 

 lobe is the prolongation of this joint (being cut otT by another 

 secondary articulation — (luite as the lobe from the 3rd joint of 

 the maxillipeds of a Gantniarus). That this miei'pretation is 

 correct is seen partly from the mentioned comparison zuith 

 Machilis, partly from the circumstance that the palpus is arti- 

 culated iL'ith the plate marked a, for if the plate marked b 

 ivas not a piece secondary cut off but the real ^th joint of the 

 maxilla the palpus must take its origiti from this and not from 

 the first- mentioned plate. 



The inner lobe of the maxilla is towards the apex strongly 

 excavated along the inner side (PI. 2, fig. 12), the apex is obli- 

 quely cut oft" and by incisions divided in small lobes; behind 

 these a number of long, stout, almost cylindrical, partly some- 

 what curved spines are found. The outer lobe is almost round, 

 for the most part firmly chitinised, a portion at the apex, espe- 

 cially on the exterior side, is soft-skinned and clothed (as it were 

 scaled) with extremely short hairs. The palpus (fig. 11, p) is 

 5-jointed: the basal joint (4) is short and stout, the 2nd very 

 short, the three others longer and cylindrical, the apex of the 5th 

 showing the same structure as the apex of the labial palpus (PI. 

 2, fig. 14), viz., an exceedingly small, cylindrical joint, the ter- 

 minal face of which is set with a number of very small sense- 

 pits, and round about this little joint the terminal face of the 

 5th joint is provided with a number of larger and smaller annular 

 pits, each with a spine-like, rather long sense-hair. 



The labium (Pi. 2, fig. 13), formed by the coalescence 

 of 2 limbs, consists of 3 joints (formed by fusion along the median 

 line), a lobe on each side from the 3rd joint and a 3 jointed 

 palpus. The basal joint, submentum (i), and the 2nd joint, 

 mentum (2), constitute together a large plate, somewhat broader 

 than long, of which the mentum occupies the greater portion, the 

 submentum being only a narrow plate, which seen from below 

 (PI. 2, fig. 4, k) is posteriorly bent somewhat downwards. The 



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