GERAPHRYNUS. 



53 



Coseley, near Dudley. 



Type in the Collection of Mr. Walter Egginton (No. 46). 



Mr. Egginton's Collection also contains a specimen measuring about 20 mm. 

 long, which possibly belongs to this species, but is not sufficiently well preserved 

 for description. 



Geraphrynus eggintoni, sp. nov. Text-figures 24, 25. 



Carapace about as wide as long ; its median length about equal to that of the 

 anterior eight tergal plates of the opisthosoma ; its posterior border convex in the 

 middle, but not produced, its lateral portion not concave or sinuous. Median area 

 of first and second tergal plates of opisthosoma very narrow ; posterior border of 

 the third straight ; the sixth nearly twice the length of the fifth, and about half 



Fia. 24. — Geraphrynus eggintoni, sp. n. ; dorsal surface 

 with appendages, four times nat. size.— Coal 

 Measures ; Coseley, near Dudley. W. Egginton 

 Collection. 



Fig. 25. — Ventral surface of prosoina and of anterior 

 somites of opisthosoma of the same. 



that of the seventh; the posterior border of the seventh and eighth straight; 

 median area of seventh and eighth subequal and about two-thirds that of the ninth, 

 the anterior width of which is about three-fourths the width of the seventh, and 

 much greater than the median length of the ninth. On the ventral surface the first 

 sternal plate seems to be much shorter in the middle line than in G. angulatus or 

 G. hindi, owing to its deeper emargination ; the second also is shorter than in the 

 former species, more produced mesially in front and more emarginate behind, while 

 the third is apparently much longer, being in fact as long in the middle line as the 

 fourth. Legs short, that of the first pair with its trochanter, femur, patella and 

 tibia about equal to the length of the carapace; the spines on the femur and 

 patella well marked; trochanter, femur and patella of the third about equal to 

 the carapace ; the same segments and the tibia of the third about equal to the last 

 five segments of the opisthosoma. 



Measurements in mm. — Total length 12 ; length and width of carapace 5 ; median 



