481 
The skeleton consists of an irregular reticulation of thick spicula- 
fibres, 150—200 in diameter; these fibres are, however, very 
indistinct in most places, everywhere loose spicules lying scattered 
about. Throughout the body are also scattered spini-spirae and 
discorhabds; the latter as usual form a thin, one-Iayered crust, a 
dermal cortex. 
Spicules. a. Megascleres. S ty li (fig. 33 a—b), generally slightly 
and irregularly curved, with narrow base, sharp point, of nearly 
even thickness all over; about 420X10 p. b. Microscleres, 1. Di¬ 
scorhabds (fig. 33 c—d), the base roughly spined; with three whorls, 
the first of the greatest diameter and placed vertically to the axis; 
the second is bending a little towards the apex, the third is di¬ 
stally placed, with spines nearly parallel with the axis; length of 
the whole spicule about 45 largest whorl about 25 fv in dia¬ 
meter. Developmental forms are found, confirming the observa¬ 
tions set forth by Dendy 1917 (5), and hence I use the new 
term discorhabd instead of discaster. 2. Spin i spirae (fig. 33 e) 
strongly spined all over, 10—12 fi; the occurrence of this spicule 
in the genus Latrunculia is extremely interesting, as it gives further 
evidence of the relationship of Latrunculia to other Spirastrellinae. 
Subevites axinelloides nov. spec. 
(Fig. 34 a—b.) 
2 miles Hast of North Cape. 55 fathoms. Hard bottom. 2/1.1915. 
Several specimens enerusting on coral fragments as thin dark- 
coloured covers, only a fraction of a mm thick. Openings could 
not be detected. Surface finely hispid. 
The skeleton is made up of almost the dermal skeleton alone, 
the main skeleton being reduced to a one-layered irregular felt- 
work of spicules close to the body of attachment. The dermal 
skeleton consists of brushes of tylostyles placed close together; 
the spicules in the brushes are arranged so that they diverge a 
i ttle from one another with their distal ends, the brushes are ac- 
cordingly mueh narrower at the base than at the summit, thus 
recalling short Axinelloid fibres. The larger spicules form the main 
skeleton, the shorter ones the dermal. 
Spicules. Ty losty li (fig. 34 a—b), straight or slightly curved. 
Vidensk. Medd fra Dansk nalurhisl. Foren. Bd. 77. . 31 
