CYCLOPOIDEA. H33 



Calanopia brachiata. 



Maris : — Frons subtriangulatus. Cephalothorax 6-7-articulatus, antici 

 angustior, angulis posticis acutis, remotis. Oculi superiores remotius- 

 culi aut coalitL AntennxE atdicce corporis longitudine, duplo curvatoe, 

 setis brevibus, posticd penidtimd articulum longitudine fere duplo supe- 

 rante, anticd apicali breviore, aliis apicalibus et subapicalibus breviori- 

 bus; antenna dextra medio paulum, incrassata, fere 23-articulata, 

 duobus articidis medianis anticd unidentatis, articulo antepenultimum 

 praecedente elongato, duplice. Pes posticus dexter maximus, digito 

 elongato, recth inflexo. Styli caudales oblongi, non divaricati, setis 

 abdomine non longioribus, vix divaricatis. 



Male : — Front triangular. Cephalothorax six- to seven-jointed, cepha- 

 lic segment separate, four posterior segments subequal, head nar- 

 rower, posterior angles of cephalothorax remote and prolonged 

 acute. Anterior antennas as long as the body, doubly curved; setae 

 short, the posterior penult the longest, nearly twice longer than 

 its joint, the anterior apical a little shorter, the other apical and 

 subapical short; right antennae incrassate at middle, subterete, 

 about twenty-three-jointed, two joints bearing a tooth on the middle 

 of the front margin, joint preceding antepenult long, double. Right 

 leg of last pair very large, finger long, inflexed. Caudal stylets 

 long, not divaricate; setee not longer than the abdomen, scarcely 

 spreading. 



Plate 79, fig. 7 a, animal, enlarged; b, posterior feet, more enlarged. 



Collected, April 8, 1842, on the Lagulhas Bank, near Cape of Good 

 Hope. 



Length, one-twelfth of an inch. The left antenna consists of 

 twenty-four joints, of which the second is much larger than the first, 

 or the following. The anterior apical setae are a little longer than 

 the posterior, but hardly exceed the length of the joint. The poste- 

 rior penult is one and a half to two times the length of the same 

 joint. The posterior antennae have the three apical setae of one 



284 



