42 Alexander Pelrunkevitch , 



The coxae of the first pair of legs meet in the middle line where they 

 apparently form maxillary lobes, the anterior ends of which are, 

 however, not preserved. The second coxae are short, wide and al- 

 most contiguous. If they ever had maxillary lobes they certainly 

 are not preserved. The third coxae are longer and tliinner than the 

 second and separated from each other by the full width of the sternum 

 against which they are abutting. The fourth coxae are the weakest 

 of all. They are also abutting against the sternum. 



Of the legs are preserved only more or less incomplete joints. 

 The femur of the second leg is 5.0 mm. long The chitin which was 

 preserved in many places has a uniform brown color. The comb 

 is not preserved The total size was probably about 45 mm. 



The nodule No. 37987 of the U. S. National Museum (PI. I, fig 4) 

 is broken in three pieces and the specimen itself is not complete. The 

 specimen must have been considerably larger, since the abdomen is 

 26 mm. long and the two post-abdominal segments (the only ones 

 preserved) 14.5 mm. But the general appearance ot the specimen, 

 the shape of the tergites, especially of the seventh, leave no doubt 

 that it belongs to the same species. Neither sternum, nor coxae are 

 preserved and the palpi are also missing. But the interest of the 

 specimen lies in the comb of one side, which is extraordinarily well 

 preserved on both obverse and reverse of the specimen (fig. 7). It 

 is very high at the base. The space between the supporting plates 

 and the teeth is occupied by apparently one long and broad, granu- 

 lated plate and a row of bead-like small plates. The number of teeth 

 is eighteen. Parts of the comb and of the abdomen were still covered 

 with chitin of the same color as in the preceding specimen. 



Specimen No. 126 of the Peabody Museum (PI. I, fig. i) belongs to 

 the same species. Only the reverse, however, is preserved, and the 

 ventral surface alone is visible. The palp, sternum, fourth coxae, 

 genital plates, basal plates of the comb, the abdominal sternites, and 

 the first post-abdominal segment, the only one preserved, have the 

 same structure as the type specimen. Of the remaining coxae only 

 parts are visible on the left side of the nodule, and the first, second 

 and third trochanters on the right. Comb and mandibles not 

 preserved. 



Length of pedipalp : femur 7.0 mm., patella 9.6 mm., tibia with 

 finger 12.5 mm. 



Specimen No. 127 of the Peabody Museum belongs also to this 

 species. The probable length of the specimen is 60—65 nim. The 

 specimen is badly depressed, the cephalothorax scarcely recognizable. 

 Length of abdomen from cephalothorax to first post-abdominal 



