282 ZOOLOGISCHE MEDEDEELINGEN — DEEL 111. 
annulations, being composed of 6 joints. Peræopods rather stout. Anten- 
nular flagella of moderate length. Rostrum well developed. 
Therefore for Pandalus serratus A. M.-Edw. the new genus Peripan- 
dalus is proposed. 
Heterocarpus lepidus n. sp. 
Stat. 215a. Octob. 29. West 1000 m. distant from North point of Kabia- 
island reef. Flores Sea. 500 m. Bottom stone. 1 female without eggs. 
Stat. 262. Dec. 18. 5° 53’.8 S., 132°48’.8 E. Kei-islands.- 560 m. 
Bottom solid bluish grey mud, upper layer more liquid and brown mud. 
1 male. 
Closely resembling Heteroc. tricarinatus Ale. & Anders., but distin- 
guished by the somewhat different toothing of the rostrum and the dif- 
ferent form and length of the dactyli of the three posterior legs. 
Rostrum strongly recurved, tapering, as long as the carapace, when 
measured in a straight line from the orbital margin to the apex: in the 
female it is a toothed, the 1st tooth of the gastric carina a little 
behind the middle of the carapace, the 5th above the orbital margin, 
the 3rd tooth of the rostrum proper a little beyond the middle. 
Carapace and abdomen resembling altogether those of Heteroc. tricarina- 
tus, the 3rd abdominal tergum in the same manner :,bluntly carinate” or 
rather gibbous, owing to a depression on either side of the middle, the 
,carina”’ rather broad, the width in the middle being one-fourth the length. 
External maxillipeds reaching in the female by two-thirds, in the male 
by one-third their terminal joint beyond the tip of the antennal scale and 
provided with a well developed exopodite. Thoracic legs as in Heteroc. 
tricarinatus, but the dactyli of the 3 posterior legs of a stout shape 
and considerably shorter: the dactylus of the 3rd pair of legs, for 
instance, measures in the female one-eighth, in the male one-sixth 
of the propodus, in the adult male of Heteroc. tricarinatus from Stat. 
208, however, one-third and the dactylus has here the same slender 
form as in Heteroc. gibbosus Sp. Bate. In the female the legs of 3rd 
pair project by the dactylus, the PEOpogus and three-fifths of the carpus 
beyond the antennal scale. 
Length of the female 137 mm., carapace 31,5 mm. long, rostrum 32 mm., 
abdomen 73,5 mm.; the male has the same size as the female. 
Heterocarpus ensifer A. M.-Edw., var. parvispina n. 
Stat. 38. April 1. 7°35/.4 $., 117° 28’.6 E. Bali Sea. 521 m. Bottom 
coral. 1 young specimen. 
