IMC MYI.IAIMI'A IN rilK A I S IIJA I.IA N Ml.sKlM lil.'iW.K.M AN N . \'-'>'A 



jKi^terior jtaitof tlie piozoiiite aii<l, still iiioie, llie nietazmiite 

 may be said to be ddr.sally devoid of any sculpture, as tlie 

 striae and punctures of tlie i)ite<;unients are nowhere distinct. 

 Latei'ally tlie strife are more easily detected ; moreover, below 

 tlie line of the ))ores, or lower down still appeal* the usual 

 aiched sti"ife of the j)rozonite : these are nevei' stron<rl\ 

 niai'ked even above tlie lefjs. Tlie suture is represented liy a 

 shallow concentric impression without any sulcus. Poi-es l)e«jfiji 

 with the sixth seofuient ; they are small ; tliey open in fi-ont of 

 the sutural impression in the middle of a low Hattened wart ; 

 on a level with the pore a sulcus crosses the metazonite, but it 

 is not to be ti'aced on the prozonite. 



Last ter^rite slioit, adorned with a few faint wrinkles; its 

 posterior margin is angularly pioduced, yet is far from con- 

 cealing the upper angles of the valves. Valves strongly 

 prominent (PI. xvii., fig. 52) ; their up]>ei" angles are quite 

 unusually thickened and produced backwards; their suii'aces are 

 scarcely globular and show narroAv pre-marginal impressions, 

 causing the margins to appear wide and thick ; in the female 

 specimen, the margins are still moi"e prominent and even 

 irregulai'ly nodulous. Anal sternite in shape of a semi-circle 

 r 5 ? abnormal) or of a rounded triangle, in both cases much 

 shorter than broad at the base. Sternites of the othei' seg- 

 ments with comparatively few striae. Stigmata small. 



Legs moderately short, with but one distal biistle below on 

 each joint except the last. 



Male : — Femora of the second j)air flattened inwardly, some- 

 what tubercular posteriorly. Coxae of the third pair produced 

 as in iK fniir'niin ; joints, second and third much swollen below, 

 fourth and fifth gradually less swollen. None of the tarsi 

 padded. 



Copulat(jry a])pendages (PI. xvii., tigs. 49. 50): — Vential 

 plate of the anterior goiiopods rl.y' with reniform basis, more 

 than twice as broad as high, ending into a stout, conic process, 

 as long as half the breadth of the basal part : its apex is 

 truncate. Distal coxal expansion angular, yet broad and 

 almost concealing the tibia, reaching as fai- as the summit of 

 the ventral plate. Proximally, the coxa is produced into an 

 endoskeletic process (efk.) reaching the middle of the tracheal 



