109 
oral cone with round or sagittally elongated mouth, in the former case 
with folds in its wall. 
4- Stichopaihes ceylonensis T. & S. According' to the description of this species, it differs 
from Stichopathes pour tale si only in having less crowded polyps and a different arrangement 
of the spines. Since the description is very vague, I see no opportunity of taking a decision 
on a possible identification, and this is my only reason for keeping this species intact, but for 
the same reason the diagnosis can only be very vague: 
Colony: scarcely tapering; first part straight, afterwards wound in 
a sinistrorsal spiral. 
Spines: triangular, laterally compressed, at right angles with the axis; 
4 longitudinal rows; length 1 / 3 of the axis diameter; mutual distance 2 
to 3 X the length of the spines. 
Polyps: prominent; long tentacles; interpolypar distance is half the 
length of a polyp. 
5. Stichopathes papillosa T. S. This species is in the shape of the spines, their surface, 
the grooves between the polyps, the dimensions of the polyps, etc. very like Eucirripathes 
angmna , but the colony is wound in a dextrorsal spiral. The diameter of the coils is much 
less than in Eucirripathes spiralis , to which it is very like in the shape of the colony, but the 
polyps are not of the same built. Although it is not impossible that this species may appear 
to be an Eucirripathes , if more specimens can be examined, just as is the case in Eucirri¬ 
pathes spiralis , for the present we have to consider it as a Stichopathes , nearly related to some 
Eucirripathes-s\)ec\e.s. Diagnosis : 
Colony: dextrorsal spiral; diameter of spiralcoils 1.3 cm.; distance 
between the coils ± 1.4 cm.; stem gradually tapering. 
Spines : Conical, slightly, but distinctly papillose on their apex or 
on their entire surface; 1 o—14 longitudinal rows; dimensions? 
Polyps: long tentacles (or contracted to low broad cones); mouth 
transversally elongated; large and prominent oral cone, interpolypar 
distance d= 2 mm.; thick coenenchyma. 
F. Cooper describes a variety with secondary spines. 
6. Stichopathes filiformis (Gray) Brook (except Silberfeld’s specimen of this species, 
which specimen is made by me into the new species Stichopathes variabilis ), to which I have 
joined Stichopathes dissimilis Roule and Stichopathes Richardi Roule. The diagnosis of Sticho¬ 
pathes dissimilis is as follows: the stem is long and slender, whiplike, everywhere of equal 
diameter, except near the top; large conical spines, 250 to 400 p. long, in 5—6 longitudinal 
rows. The polyps present two types (whence the specific name); one of these types is large 
with thick tentacles, 1.25 mm. long (the sagittal ones) and 0.8 mm. (the lateral ones), some¬ 
times radiate, sometimes in three pairs (as in Parantipathes'). The other type of polyp is small, 
