ON THE ANASPIDACEA, LIVING AND FOSSIL. 515 
reduced to small unsegmented lamellw, while in Koonunga 
they are absent altogether. In Anaspides the hmbis eight- 
jointed ; the basipodite, carrying the exopodite, is very small, 
but separated from the propodite by a distinct groove. In 
Paranaspides this groove is very incomplete, while in 
Koonunga there is no groove at all, the two segments being 
TEXT-FIG. 23. 
Riis ep. 
2 Ota 
Anaspides tasmaniz. Seventh thoracic limb of male. 
entirely fused. Attention has already been called to the 
presence of the setose lobe on the coxopodite of this and the 
two preceding limbs in the female sex. 
The eighth thoracie limb (text-fig. 25) in all three 
living genera is composed of apparently seven joints, the 
second and third segments having no doubt, from the analogy 
of the preceding limbs, fused together. The exopodite has 
