CYCLOPOIDEA. 



1081 



articulo ultimo brevi. Antennas anticce corpore valde longiores, prope 

 basin arcuatm, alioque rectce et latissimZ divaricates, apicibus fronte 

 paulo anterioribus, articulo penultimo abbreviato; setis vix brevibus, 

 plerumque fractis,fere asquis, apicalibus et subapicalibus incequis, Ion- 

 giusculis, anticd antepenultimd obsoletd. Antennce posticce ramo minore 

 multiartieulato. Abdomen curtissimum. Styli caudales perbreves, 

 setis secundis dimidio corporis longioribus. 



Much elongate. Front triangular, acute, rostrum long and slenderly 

 furcate. Cephalothorax anteriorly narrow, obtuse behind, five- 

 jointed, last joint very short. Anterior antennse much longer than 

 the body, arcuate towards base, then straight, the tips a little ante- 

 rior to line of beak, the penult joint very short ; setse moderately 

 short, mostly bent, subequal, apical and subapical spreading, un- 

 equal, rather long, anterior antepenult obsolete. Shorter branch of 

 second pair of antennas multiarticulate. Abdomen extremely short. 

 Caudal stylets very short; second seta longer than half the length 

 of the body, the others of moderate length. 



Plate 75, fig. 2a, view, enlarged; a', extremity of antenna; b, 

 mandible ; b' , body of mandible in another position ; c, maxilla ; d, 

 under view, more enlarged (a, first antenna; b, second antenna; c, 

 mandible; d, maxilla); e, back view (showing the nerves to the an- 

 tennae (a), that to the eyes (e), and the glands over the stomach, 

 which are ovarian or spermatic; m, a muscle moving the abdomen). 



Collected two individuals just south of the Kingsmill Islands, in the 

 Pacific, April 1, 1841, 4 a.m.; also, April 13, 1841, in the Kingsmill 

 Group; also in the China Sea, February 15, 1842. 



Length, one-eighth of an inch. The anterior part of the body is 

 proportionally much narrower than in the preceding species and more 

 elongate; the breadth posterior to the first antennas is hardly half 

 that across the middle. The setae of the first antennae and caudal 

 setae are unlike those of that species; and the setae of the second an- 

 tennae and following organs are much longer than in the G. elongatus. 

 The first antennae are one-fourth longer than the body ; the last joint 

 is longer than the two preceding. There is a seta a little longer than 

 the others near, about one- third the length of the antenna from its base. 



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