lWjlLLH 
242 
from the development of other Scalpellum spec¬ 
ies. The present specimen (Fig. 9) has a capi- 
tulum length of 5,5 mm with a width of 3,* 
mm, and a peduncle length of 3 mm. 
More weight might be ascribed to the cut- 
icle which, according to Gru vel, is „mince et 
glabre w , whereas in the present specimen, espec- 
ially on the carinal side, it is covered with fine 
and rather long hairs. 
Nevertheless I am inclined to refer my spec¬ 
imen to the same species, and do not introd- 
uce a new name for it, the more so, as cert- 
ainly too many species have already been described in the present 
group, the subgenus Scalpellum Pilsbry (1907). 
Scalpellum balanoides Hoek. 
25 miles E. to S. of Zamboanga; 160 fathoms. 3/III 14. Several spec- 
imens, together with Sc. indicum. 
Menado Bay, 1° 31’ N., 124° 47’ E. 250 fathoms. Captain Christiansen 
13/III 13. Several specimens on the cirri of a crinoid, together 
with Megalasma minus. 
The very characteristic species has been care- 
fully described by Hoek (1883). In the present 
specimens (Fig. 10) the lines of growth are rather 
distinet; as moreover Hoek’s drawings of the 
habitus are not quite satisfactory, I give a camera 
drawing of one of the adult specimens. 
Among the specimens brought home by Dr. 
Mortensen also some very young ones were 
present, the smallest of which is represented in 
fig. 10 b. It differs interestingly from the outgrown 
form in having a comparatively larger inframedian 
latus, the apex of which covers the lower, hind 
angle of the scutum. Also the carinal latus is 
comparatively mueh larger than in the adult, and 
the apex of the carina is free. In the peduncle 
the regular arrangement of the scales is only seen 
in the upper part. — Intermediate stages of growth 
link this specimen to the typical adult form. 
Fig. 10. Scalpellum ba¬ 
lanoides. a. adult spec¬ 
imen from MenadoBay, 
b. young specimen 
from 25 miles E. to S. 
of Zamboanga. [X 4]. 
Fig. 9. Scalpellum aff. 
salartiæ ; W. 1 h S. off 
Jolo. a. rostrum. [X5,s]. 
