5 1 



m between the two ductus cjaculatorii. I Ie could not make ou1 the chords "connectifs") 



unitii lion uiili the other, but he admits that such nervous chords <\i^t. I did 



them either, but 1 found that .1 rather lai tuated between the eye 



and the wall ol itomach, v tli.n the eye nearlj rests on or against this ganglion. From 



this the optie ganglii en laterally as in fig. 3 of PI. V is oval, but which is 



heart-shaped when seen from above, two very distinct nerves run, as may 1"- supp 



ld not be made out, t<> the I ganglion. 



Th( "S this species al the following places and station 



March 19 21, 1899. Baj ol Labuan Tri ist ol Lombok. On hore. 



Bima. * >n shoi 



Vpril 16 18, 1899. Baj of Labuan Badjo, V. ist of Flores. On sh< 



115. July 9 11, 1 East Side of Pajun I nd. Kwandang Bay. On the < 



N.B. Dr. C. 1'n. Sluiter sent me, about 1884, specimens of an Ibla found by liim 

 at randjong Pandan (Billiton) on corals which belong undoubtedly to this species.] 



Genus Scalpellum Leach 



( »f all the known genera of Cirripedia this is the richest in species. In liis Monographie 

 des Cirrhipèdes of 1 Gruvei distinguishes in all 93 species of Scalpellum — that this number 



by no means includes all the existing forms is proved by the collection of the "Sib It 



contains j8 species of this genus aml 32 of these have not been described before. 



This augmentation seems especially considerable, if we take into consideration the relatively 

 smal! area that lias been explored by the Dutch man-of-war: all these new species were collected 

 within the Malay Archipelago. 



The number >>( species of the present genus hitherto known with certainty as occurrin-; 

 in that archipelago was sixteen, viz. : 



Sc. villosum Leach. Eastern Seas (Darwin) (? India, Timor, New Holland). 

 N . trispinosum Hoek. Philippine Archipelago. 

 Sc. rostratum Darwin. Philippine Archipelago. 



compressum Hoek. Between Celebes and Sangir Islands. 

 Sc. album Hoek. North of Karakelang, Talaut Islands. 

 Sc. hirsutum Hoek. West of Batjan, Last of Celebes. 

 5 rubrum Hoek. Philippine Archipelago. 



truncatum Hoek. Between New Guinea and Australia, East of ('ook Peninsula. 

 moluccanum Hoek. South of Ceram. 



australicum Hoek. Between New Guinea and Australia, East of Cook Peninsula. 

 . distinctum Hoek. North of New Guinea, eastern half. 

 indicum Hoek. Kei Islands. 



tlu/iiutu 1 1« -ck. Between New Guinea and Australia. East of Cook Peninsula. 

 \alanoides Hoek. Kei Islands. 



inatum 1 loek. / 



North ol New Guinea, western half. 

 \ium Hoi \ 



