SIPUNCULOIDEA. 135 
14. Physcosoma riippellii Grube. 
Selenka. Die Sipunculiden, 1883. 
A few specimens taken out of the coral rock, into which they had bored, at Minikoi 
and three specimens—also boring forms—taken at Goidu, Goifurfehendu Atoll, in the 
Maldives. The circular muscles of these had contracted so strongly in the anterior third 
of the body that the appearance of a very distinct tail was produced such as was described 
by Lankester in his genus Golfingia. 
Locality. Minikoi, Laccadive Islands and Goidu, Goifurfehendu Atoll, in the Maldives, 
previously recorded from the Red Sea. 
15. Physcosoma scolops Sel. and de Man. 
Shipley. P. Zool. Soc. London, 1898, p. 470 and Willey’s Zoological Results, Part 11. 
1899, p. 156. 
The specimens of this species were found in the sand under stones in the boulder 
zone, most in the large island and at Wiringili; some were taken out of coral masses 
dredged up from a depth of six or nine fathoms, and others in a passage at Suvadiva 
Atoll at a depth of twenty fathoms. 
Locality. Minikoi, Laceadive Islands, and Suvadiva Atoll in the Maldives. 
Like Phys. pacificum and Phys. asser this species stretches from the Pacific Ocean to 
the coast of Africa. A few species were found at Minikoi in the same locality as S. vastus, 
Phys. asser and Phys. pacificum. 
VI. Genus SIPUNCULUS L. 
16. Srpunculus billitonensis Sluiter. 
Sluiter. Natuurk. Tijdschr. Nederl. Ind. xiv. 1885, p. 487. 
Shipley. Willey’s Zovlogical Results, Pt. 11. 1899, p. 157. 
One example only and this differed externally from the specimens, of what I take 
to be the same species, brought home by Dr Willey. The large black spots were missing, 
and the anus was not so prominent. The animal was quite 20 cms. long when stretched 
out. The retractors were inserted very far forward about 3 cms. from the anterior end of 
the animal, the head of which however was retracted. Thus the proportion of the retractile 
part of the body to the non-retractile or trunk is much smaller than is usual in the genus, 
Locality. Minikoi, Laccadive Islands, also from East Indies and Loyalty Islands. 
17. Stpunculus cumanensis Ket. 
Shipley. Willey’s Zoological Results, Pt. 1. 1899, p. 157. 
A large collection of beautifully preserved specimens belonging to Selenka and de Man’s 
variety vitreus, many with the introvert and head fully extended. The animals were 
captured near the south-west end of the Island of Minikoi, where they were found living 
in the sand under stones. Mr Gardiner notes “these forms are found quite free-living, 
G. 18 
