94 Carl Bovallius, The Oxycephalids. 



apical tooth; the dactylus is not half as long as the meta- 

 carpus. The fourth pair are longer than the third. The 

 femur of the seventh pair is as long as that of the sixth, 

 and is as long as all the following joints together. 



The lateral parts of the first two pleonal segments are squared 

 behind; that of the third segment is acutely produced back- 

 wards. 



The last coalesced ural segment is much more than twice as 

 long as broad, and is considerably longer than the telson. 



The peduncle of the first pair of uropoda is a little shorter 

 than the last coalesced ural segment, and is nearly twice as 

 long as the inner ramus. 



The tehon is lanceolate, and is more than twice as long 

 as broad. 



Syn. 1888. Leptocotis mindauaouis, Th. Stebbing. 39, p. 1598, pi. 204, c. 



For further information on the subject I refer the reader to 

 Stebbing's work. 



Colour. Hyaline spotted with orauge (Stebbing). 

 Length. »About two-fifths of aa inch» (Stebbing). 

 Hab. Off Mindanao, Philippines (Stebbing). 



Gen. 7. Craiiocephalus, n. g. 



Derivatio: xqûvoç, = helmet, and xê(faXoç = a large-headed fish. 



Diagn. The head is short and thick, produced into a very short, 



sharp-pointed rostrum, which is open on the under side. 



The hind part of the head is constricted. 

 The second pair of antennce are hidden under the head and 



the perseon, when folded. 

 The first two pairs of perœopoda are subcheliform. The 



carpus and metacarpus of the fifth pair are not dilated. 

 The last coalesced ural segment is longer than, but not twice 



as long as, the first, and is not twice as long as broad. 

 The inner rami of all the three pairs of uropoda are free, not 



coalesced with the corresponding peduncles. 

 The telson is tongue-shaped and elongated. 



