PART II 

 Family APHRODITIDAE. 



The coUection of Aphroditidae, brought home by the Siboga Expedition, is a very 

 rich one, for all the sub-families are represented in it ; it must have been no easy task to 

 piek up these animals, several of which are very sniall and oozy, from the mud in which they 

 are living. 



Of the sub-family Hermioninae hitherto only two species were met with in the Nether- 

 lands' East-Indies viz. Aphrodite sondaica^ mentioned by Gruük from North Borneo and a 

 species of Hermione {) Jiystrix Sav.) collected by Semon in the neighbourhood of Amboina, 

 by KüKENTHAL in the sea of Ternate. The species of Aphrodite has not been refound by the 

 Siboga Expedition, however she made a rich harvest of 23 species, belonging to the genera 

 Aplwoditella (A. malayana, A. liinosa, A. sièogac\ A. decipiens^ A. viongolica^ A. Jïorcsiand), 

 Hermione (//. inoluccana, H. parva, ? H. malleata Gr.), Laetmonice (Z. producta Gr. var. 

 L. malayana^ L. riigosa, L. djibiosa, L. óreve-pinnata, L. batheia^ L. viridescens^ L. aphro- 

 ditoides Mc Int.), Pontogenia [P . iiiida, P. spinosd)^ Aphrogenia [A. villosa, A. nigro-punc- 

 fafa) and to a new genus Halogenia (//. arenifera, H. conchiferci). 



Our knowledge of the distribution of the Iphioninae increased very much, for Iphione 

 ■mitricata, hitherto only mentioned from Amboina, was collected by the Siboga Expedition at 25 

 stations, especiall}' on coral-reefs ; of the rare IpJiionella cimex, only known from two localities, 

 viz. Malacca Strait and Sulu Sea, one specimen was dredged in the last-named Sea at a depth 

 of 1270 m. and the other one south off the isle of Rotti, at a depth of 520 m. 



As to the sub-family of the Poiynoïnae, hitherto only s i x representatives of this group 

 were mentioned from Amboina, Borneo, Ceram and Ternate viz. Lepidonotus carinulatus Gr.. 

 L. ivahlbergi Kinb., Polyno'c eornuta Fischli, P. gymnonotns Mrz., P. crisiahis Gr., {Polynoë 

 tuinorifera Gr.) and Sca/iscios2is ceraviensis Mc Int. ; of those two species Lepidon. ivahlbergi 

 Kbg. collected by Bedot near Amboina and L. (Polynoë) gymnonohis Mrz. met with by Kükenthal 

 near Ternate, have not been refound by the Siboga Expedition. However she had the good 

 luck to collect 63 species and varieties of Polynoïnae, of which 21 species are new to science, 



SIBOGA-EXI'EDITIE XXIV' b. 



*48^6 



