142 
tentacles. The tentacles are broad and heavily built, with a very broad base; they are very 
much like flat triangular plates (cf. fig. 194). The oral cone is high and domeshaped, projecting 
225 p. even above the insertion of the lateral tentacles. The entire cone is distally inclined, 
as to give the impression that the proximal lateral tentacles are at a higher level than the distal 
ones, although they are sub-equal in length. All the lateral tentacles are directed distally just 
like the sagittal ones, but the round small mouth is visible. Young polyps alternate irregularly 
with the adult ones. The long spines project through the coenenchyma, but not through the 
polyps. — The very diverging type of polyp together with the partial smoothness of the axis, 
present in all specimens, have induced me, in connection with the microscopical anatomical 
differences, to form this species although the shape of the axis is very much like the axis of 
Stichopathes variabilis , while the shape of the spines might be compared with some spines of 
the very variable variety of Stick, variabilis , viz. var. asperispina. The diagnosis is: 
Colony: length ±0.5 m.; basal diameter (± 100 p.) increases before dimi¬ 
nishing; wound in a loose, sinistrorsal spiral except the straight base (± 1 dm.); 
occasionally swiftly diminishing diameter. 
Spines : of unequal length on opposite sides of the axis: longest ones are 
45 — 190 p., shortest ones o—75 p. Parts of the axis are on one side entirely 
smooth. — Number of longitudinal rows; 4—7 (usually 5). Mutual distance 
of the spines 330 — 600 p (usually 450—480 p). Blunt, conical, sligthly distally 
inclined, smooth or rarely with a slightly granulated top. 
Polyps: prominent, distally inclined. Interpolypar distance 1.7 — 1.8 mm. 
sagittal tentacles 0.7 mm., lateral ones 0.45—0.5 mm. High, domeshaped, distally 
inclined oral cone with small round mouth. Proximal lateral tentacles inserted 
at a higher level than the distal lateral ones. Tentacles broad, flat, triangular. 
5. Stichopathes aggregata sp. n. 
Stat. 213. Anchorage off Saleyer. Up to 36 M. Mud and mud with sand. 1 spec. 
This colony is irregularly curved and very slender. The length is 12 cm. with a basal 
diameter of 135 p. Oh a short distance above the base there is a 
local increase in diameter, after which the diameter remains sub-equal 
(120 p) before diminishing regularly towards the slender top. The 
spines (fig. 195) are smooth and at right angles with the axis; the 
higher in the colony the spines are inserted, the more acute their 
top is (fig. 195 b), while also double-topped spines occur (fig. 195^), 
^Spines or'Xb^eTt^coionyi behind eacb other - Tb e spines on opposite sides of the axis are sub- 
b doubled spme; c spme on a higher equal: ±-45 p. Their mutual distance is rather variable (300 — 375 u) 
part of the colony ; d polyp on the base 
of the colony; a, b, c 52 X; yi 4 X- ob;en on one and the same part of the colony. There are 5—6 
longitudinal rows, either alternating in a straight or slanting quincunx, 
or on the same level, or without any further regularity, through the variable distance of the 
spines, but the rows themselves are always regular. 
a. 
K 1 nr Trtf V///-Zj/i-A/t / 7? c rt rrm* a n sv f /-r c-r\ r\ 
