OF ARTS AND SCIENCES. 25 



Long. ^". — Hob. in mari Atlantico, lat. aust. 4°, long. occ. 21°. — 

 Lect. die 7 Nov., 1838. — An Cetochilo septentrionali (Goodsir) affinis? 



2. Cyclopsina calanina. — Gracilis. Frons triangulata. Cepha- 

 lothorax postice obtusus, 6-articulatus, capite vix discreto, articulis pos- 

 ticis acquis. Antennae anticse corpore longiores, tenuissimce, rectiuscu- 

 Ids, apicibus fronte non posteriores ; setis brevibus, apicalibus anticis 

 articuli longitudine, subapicalibus totis valde brevioribus ; antenna 77ia- 

 ris dextra medio leviter incrassata. Styli caudales elongati, divaricati. 



Long. y\y", — Hab. in mari Pacifico, prope insulam " El Gran Ce- 

 cal."— Lect. die 25 Mar., 1841. 



3. Cyclopsina tenuicoknis. — Maris : Frons triangulata. Ce- 

 phalothorax postice fere obtusus, 7-articulatus, capite discreto, articulis 

 posticis Kquis. Antennae anticce corpore longiores, apicibus fronte vix 

 anteriores, tenuissimse, rectiusculEe, setis brevibus, anticis apicalibus fere 

 articuli longitudine, postica penultima paulo longiore. Abdomen 3- 

 articulatum. Styli caudales elongati divaricati. 



Long. Jg-". — Hah. in mari Pacifico, prope insulam " Depeyster " ; 

 lect. die 22 Mar., 1841. Etiam (?) in Archip. " Paumotu " ; lect. Aug. 

 13, 1839. 



4. Cyclopsina gkacilis. — Maris : Antennae anticse corpore valde 

 longiores ; abdomen 4-articulatum ; aliis C. tenuicorni similis. 



Long. -j-y. — Hab. in mari Pacifico, lat. bor. 25°, long, orient. 167°. 

 — Lect. die 14 Mali, 1841. — An var. C. tenuicornis. 



Genus VII. CATOPIA. 

 Antennas posticas et antennarum habitum anticarum Colano affinis. 

 Antennam anticam maris dextram PontellcB affinis. Oculi superi- 

 ores nulli ; oculus inferior unicus (?). 



Catopia furcata. — Gracilis. Caput quadratum, non discretum. 

 Cephalothorax 4-articulatus, postice 4-dentatus, dentibus acutis, exter- 

 nis longioribus. Styli caudales oblongi, divaricati. Antennae anticae 

 corpore longiores, duplo curvatae, apicibus fronte non anteriores ; setis 

 totis brevibus. 



Long. tV'- — Hab. in freto " Banka." — Lect. die 2 Mar., 1842. 



Genus VIII. ACARTIA. {Dcma.) 



Antennce anlicoe, rectiuscute, flexiles, setis irregulariter diffijsis, dextra 

 maris non geniculante. Maxillipedes (ct. vi.) pedibus proximis ma- 

 jores, recti, setis setulosis longis instructi. Pedes postici (ct. xii.) 

 VOL. II. 4 



