CLADOCARPUS PARADISEA. 53 
There are thus two bifurcations in this species, while in Cladocarpus doli- 
chotheca there are three. This difference appears constant. 
The branches of the phylactogonia are all provided with well-devel- 
oped tubular nematophores, which are arranged along each branch in 
a single longitudinal series. 
Cladocarpus paradisea. 
Pls. XXXII, and XX XIII. 
Trophosome. — Stem attaming a height of fourteen inches, irregularly 
branched, fascicled, and thick below, gradually losing its fascicled condi- 
tion, and becoming monosiphonic towards the distal ends of the main 
stem’and branches; pinne alternate, rather distant, attaining a length 
of about one inch and a quarter. Hydrothece large, deep, widening up- 
wards; margin with two strong teeth in front; rest of the margin des- 
titute of teeth; intrathecal ridge faintly marked, forming a waved line 
which stretches across the middle of the hydrotheca. Supracalycine nema- 
tophores bracket-shaped, not overtopping the margin of the hydrotheca ; 
mesial nematophore attaining about one third the height of the hydro- 
theca, to which it is adnate to within a short distance of its extremity. 
Gonosome. — Gonangia-bearing appendages (phylactogonia) in the form 
of pinnately branched offshoots, which spring each from a pinna of the 
trophosome close to its origin, and is set with cup-shaped nematophores 
along its stem and branches; branches of phylactogonia alternate; female 
phylactogonium larger than male, and carrying a single gonangium in front 
of the axil of each of its branches; male with a cluster of gonangia 
at the base of each branch; female gonangia obovate, with a latero- 
terminal transversely elongated orifice over which the summit of the 
gonangium bends in the manner of a hood; male gonangia smaller 
than female, obovate, with a sub-terminal orifice not arched over by the 
summit. 
Dredged off Tennessee Reef, from a depth of 174 fathoms, and off Samboes, from 123 fathoms. 
Cladocarpus paradisea is a magnificent species. I take for granted that 
the difference presented by the gonosomes in the specimens examined 
is a sexual one, for there is no difference in the trophosomes; but 
though I believe I am right in regarding the larger gonosome (PI. 
XXXIII. Fig. 3.) as the female, I could not from the specimens determine 
this point with certainty. 
