14- Stichopathes ? bournei F. Cooper. The polyps are unknown, so that a possible 
identification with other species is not well feasible. The diagnosis can only be given in the 
following cursory manner: 
Colony: straight, tapering-, basal diameter 6 mm. with a length of more 
than i m. 
Spines: 5 longitudinal rows; one side of the axis is smooth, the other side 
has spines of 200 p. ; blunt, conical, distally inclined, with a much papillated 
surface. — Sometimes secondary spines on the smooth side of the axis. 
Polyps : unknown. 
The Siboga-specimens contain the following species: 
1. Stichopathes solorensis sp. n. 
Stat. 305. Solor-strait. 113 M. Stony bottom. 1 spec. 
This colony, lacking the natural base, is 17 cm. high; beginning with the base itself it is 
wound in a sinistrorsal not absolutely regular spiral, wherefrom 4 1 / 2 coils are visible, the diameter 
of which diminishes regularly towards the top of the colony from 3.5 to 2.5 cm.; there is a distance 
of 4 cm. between the coils. — The basal diameter of the axis of 
more than 1.5 mm. diminishes regularly towards the slender top. The 
spines (fig. 105) are triangular, with a distally inclined, blunt apex 
and a concave distal side; the proximal side is concave at the base, 
convex at the top. On the younger part of the colony the apex is 
more acute (fig. 105, c ). The surface is smooth; the length of the 
spines (100 to 140 p.) is subequal on every side of the axis; there are 
6 to 7 longitudinal rows, alternating in a quincunx, which disappears 
sometimes through the variable distance of the spines, which is 375 to 450 p.. The spines 
perforate the coenenchyma (fig. 106) but not the polyps. The lightbrown polyps (fig. 106) are 
arranged in a single series, with an interpolypar distance of more than 2 mm., and there are many 
young polyps between the adult ones, however without altern¬ 
ating regularly with them; a part of the colony has i. a. the 
following alternation ( a = adult, y = young) : y — a — y — a — y — a 
—y — a — y—y-a—a-a-y—a—y—y—y—a—y—a—a—a—a—a 
-y—a—a—a— etc. Together with rows of adult ones or rows 
of young ones, also a regular and an irregular alternation oc¬ 
curs. — The sagittal tentacles are inserted at a lower level than the lateral ones, which are 
lying against the oral cone. The sagittal tentacles are 1 mm. long; the lateral ones are of 
the same length or somewhat less, but they are thinner. The oral cone is well developed 
with a round mouth, but both are usually not visible since they are covered by the lateral 
tentacles. There is not much difference between this species and Eucirripathes spiralis (Blainv.), 
of which it might be a variety with an other type of spines. Both species are nearly related. 
The diagnosis is as follows : 
o 
Fig. 106. Stichopathes solorensis sp. n. 
Polyps; 7.6 X- 
Fig. 105. Stichopathes solorensis 
sp. n. Three types of spines; 
a , ?>■> ‘ 52 X- 
