2 7- 



not stvliform. The first pair of maxillipedes is non-stylet-shaped and is moderately well developed. 

 The first joint is furnished with a digitiform process carrying spines. The second joint terminates 

 in a broad serrated tooth. The exopodites and endopodites of the four pairs of swimming feet 

 are three-jointed. The abdomen of both sexes is composed of five segments. 



The non-stylet-shape of the mandible and of the first pair of maxillipedes, along with 

 the large lamelliform fifth pair of feet, are the prir»cipal characters that separate the members 

 of the family from the Lichomolgidae. 



One species belonging to Canu's genus Hersiliodcs was represented in the material 

 collected by the 'Siboga' during the investigations carried out in the Malay Archipelago. 



i. Hersiliodcs leggii Thompson & Scott. 



Hersiliodcs leggii Thompson & Scott, 1903, p. 283, pi. XVII, figs. 12 — 21. 



One male identical with the above species was found in the washings from dredged 

 invertebrata collected at Station 273, off Pulu Jedan, East Coast of Aru Islands, from a depth 

 of 1 3 metres. 



This species is readily recognised by the short broad fifth pair of feet being armed 

 along the margins with a dense fringe of short spinules. 



Hersiliodcs leggii has hitherto only been known from the Gulf of Manaar, Ceylon. 



272 



