Ablennes hians as follows: Ablennes Mans, Bata- 

 via, Java; Strongylura strongylura, Fiikien, 

 China; Hong Kong (2 collections) ; Amoy, China 

 (2 collections) ; Penang, Malaysia. 



Holotype female (USNM 125696) and two para- 

 type females (USNM 125697) from the oral 

 valves of a t^tron-gylura strongylura (ANSP 

 76986) from Hong Kong. 



Female. — Body fonn as in P. ensiculus. Total 

 length 2,100 ,«.. Greatest width 1,100 jn. Thoracic 

 segments not inflated dorsally, not overlapping 

 succeeding segments. Genital segment wider than 

 long (207 /i by 325 ju). Abdomen 3-segmented; 

 lengths of segments from anterior to posterior 

 106 IX, 65 /i, and 83 /i, respectively, last segment 

 with ventral patches of spinules (see fig. 91) near 

 outer distal corners (spinules not as conspicuous as 

 in P. ensicuhis). Caudal rami (fig. 91) about twice 

 as long as wide (75 ix by 34 ^, 65 /x by 31 p., 65 /^ by 

 35 IX for three specimens) ; each with a ventral 

 patch of spinules as indicated in figure. 



First and second antennae as in P. en^icvZus. 

 Oral area as in figure 92 ; labrum with a patch of 

 scalelike processes on each half (finer than those 

 of P. ensicuhis) . Mandible with two terminal proc- 

 esses, inner process much shorter than outer. Par- 

 agnath bladelike, double row of fringe along pos- 

 terior border. First maxilla with four long setae — 

 three plumose, one naked. Second maxilla as in 

 P. ensiculus. Maxilliped (fig. 93) with accessory 

 process on claw; terminal segment with three 

 plumose setae. 



Legs 1 to 4 biramose, all rami (except leg 1 exo- 

 pod) 3-segmented and all setae plumose. Leg 1 

 (fig. 94) exopod first segment with broad spine 

 on outer distal corner, second segment with three 

 small outer spines and six well-developed setae; 

 endopod 3-segmented, first two segments each with 

 an inner seta and terminal segment with five setae. 

 Leg 2 (fig. 95) exopod, first segment with an outer 

 spine, second segment with an outer spine and an 

 inner seta, terminal segment with four outer spines 

 {P. ensiculus has three) and five terminal to inner 

 setae; endopod, first segment with an inner seta, 

 second segment with two inner setae, terminal seg- 

 ment with two short outer spines and three ter- 

 minal setae. Leg 3 (fig. 96) exopod, first two seg- 

 ments armed as in leg 2, terminal segment with 

 three outer spines and five terminal to inner setae; 

 endopod, first two segments each with an inner 

 seta, terminal segment with two terminal setae and 



two short outer spines. Leg 4 (fig. 97) exopod, 

 first two segments armed as in legs 2 and 3, last 

 segment with three outer spines (terminal-most 

 about twice the length of other two) and four 

 terminal to inner setae; endopod, firet two seg- 

 ments armed as in leg 3, last segment with an 

 inner and an out«r spine and a median terminal 

 seta. Spine and seta formulas of legs 1 to 4 follow : 



Leg 5 (fig. 98) armed as in P. ensiculus; ratio 

 of seta 1 to seta 2 less than in P. hellones or P. en- 

 siculus (see Discussion). Leg 6 represented as two 

 setae on lateral border of genital segment. 



Egg sacs broken in the only specimens bearing 

 them. 



Color in preserved material, cream. 



Male. — Unknown. 



Etymology. — The specific name sinensis refers 

 to the geographic area (China coast and environs) 

 to which this species seems to be restricted. 



Reinarks. — This species can be separated from 

 all species of the genus except P. ensiculus, 

 P. constrictus, and P. decapteri Yamaguti 

 by the patches of spinules on the ventral surface 

 of the caudal rami and last abdominal segment. 

 It can be separated from P. constrictus by the na- 

 ture of the setae of leg 5. P. ensiculus has only three 

 spines on the last exopod segment of leg 2, whereas 

 P. sinensis has four; also the spinules on the cau- 

 dal rami, abdomen, and labrum are much heavier 

 in P. ensiculus. Finally, P. sinensis can be sepa- 

 rated from P. decapteri by the presence of patches 

 of spinules on the exopod segments of legs 2 to 4 of 

 P. decapteri and their absence in P. sinensis. 



Nothobomolochus gibber (Shilno) 



Figures 99 to 101 



Specimeris st^idied. — A total of 235 females from 

 20 collections from 6 species of hosts. From the 

 Mediterranean and eastern Atlantic, collections 

 were made from the following hosts and localities: 

 Belone helone, Funchal, Madeira; Belone svetavi- 

 dovi, Tunisia ; Genoa, Italy ; Platyielone argalus. 

 Ascension and Annobon Islands, Gulf of Guinea. 

 From the Indo-West Pacific, collections were made 

 from the following hosts and localities: Ahlemnes 



372 



U.S. FISH AND WILDLIFE SERVICE 



