64 



TERRESTRIAL CARBONIFEROUS ARACHNIDA. 



Anthracomartus hindi, sp. nov. 



Plate III, fig. 



Text-fio-ures 30- 



Carapace about as long as wide or a little longer ; its median length about equal to 

 that of the anterior 1 five tergal plates of the opisthosoma ; its surface, like the dorsal 

 and ventral surfaces of the opisthosoma, finely, closely, and nearly uniformly 

 granular throughout. The first tergal plate of the opisthosoma large; its median 

 length nearly equal to that of the second and third taken together; the median lengths 



Fig. 30. — Anthracomartus hindi, sp. n. ; restoration of dorsal surface with appendages, taken from several 

 specimens, about two and a half times nat. size. — Coal Measures ; Coseley, near Dudley. 



of the second, third, fourth, fifth and sixth subequal; the posterior border of the 

 median area of the first and second straight, of the third, fourth, fifth and sixth 

 becoming gradually but only slightly more and more recurved; the length of the 

 median area of the first plate about half its posterior width ; of the second a little less 

 than one third of its posterior width ; the third to the sixth becoming progressively 

 and gradually narrower, the median length of the sixth being about one-half its 

 posterior width ; median length of the seventh exceeding that of the first and 



1 In this and other cases where Anthracomartidae are described, the first tergal plate of the 

 opisthosoma is considered to be the seventh from the end on the dorsal side, the narrow anterior 

 plate, which is often overlapped by the carapace, being disregarded. 



