THE ALCYONAPIA OF THE CAPE OF GOOD HOPE AND NATAL. 



579 



The spicules of the polyps are (l) long, narrow spindles with many spines; (2) 

 foliaceous and one-sided clubs ; (3) forked, divided clubs. 



The long spindles measure from 0-221 by 0-051 to 0-595 by "0561 and 0*459 by 

 0-119 mm. 



The foliaceous and one-sided clubs measure from 0*238 by 0"102 to 0'408 by 

 0'153 mm. 



The longer clubs, forked and divided at the apex, measure from 0*272 by 0*1785 

 to 0*765 by 0*153 mm. 



The spicules of the external trunk are spheres, double spheres, and short spindles 

 with broad expanded processes. 



The spheres measure from 00595 by 0*051 to 0*085 by 0*085 mm., and from 0*102 

 by 0*085 to 0*1105 by 0'085 mm. 



Fig. 2.— Diagram of the polyp of Capnella gilchristi, n. sp., showing the arrangement of the spicules, x 35. 



The short spindles with broad processes measure from 0*085 by 0*0765 to 0*119 by 

 0*0952 mm. 



The spicules of the internal trunk are spheres and short spindles. They are not so 

 abundant as in the rind. The spheres measure from 0102 by 0*085 to 0*136 by 

 0*102 mm. 



The short spindles measure from 0*1054 by 0*0935 to 0*1275 by 0*1105 mm. 



Locality, etc. :— P.F. 13,123. Cape Morgan, N.N.E. 9| miles. By dredge. Depth, 

 47 fathoms. Nature of bottom, broken shells. Date, July 25, 1901. 



This species agrees well with the diagnosis of the genus Capnella given by 

 Kukenthal, namely : " Colonie aufrecht baumformig, die nicht retractilen, un- 

 gestielten Polypen ohne Stiitzbundel, in Lappchen stehend, dicht mit zahlreichen 

 Blattkeulen bewehrt. Canalwande dick, und dicht mit walzenformigen Spicula 

 erfullt." 



The distribution of this genus is confined to the Indo-Pacific Ocean, and three 

 species have already been described from the coast of East Africa, namely, Capnella 



