On Pemphix, Glyphea, and Areosternus. 133 
EXPLANATION OF PLATE V. 
Fig. 1. Acts orientalis: part of largest specimen, from front, natural size. 
Fig. 2. Thesame: apex of branch, from front, x 8 diam. 
fig. 3. The same: apex of branch, from behind, x 8 diam. 
Figs. 4 & 5. The same: cortical fusiform spicules No. 1, x 48 diam. 
Fig. 6. The same: cortical squamous spicule No. 2, x 48 diam. 
Fig. 7. Parisis mauritiensis : lateral branch, nat. size. 
Fig. 8. Muricella perramosa : terminal branch, nat. size. 
Fg. 9. The same: cortical spicule No. 1, x 43 diam. 
4g. 10. The same: cortical spicule No. 2, x 43 diam. 
XIV.—Carcinological Investigation on the Genera Pemphix, 
Glyphea, and Areosternus. By T. C. WINKLER *. 
I. Introduction +. 
A few months ago Dr. J. G. De Man, Curator at the 
Museum of Natural History at Leyden, informed me that he 
* Translated by W.S. Dallas, F.L.S, from the ‘Archives du Musée 
Teyler,’ ser. ii. deuxiéme partie (1881), pp. 73-124, 
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