REPORT ON THE COPEPODA. 12 I 



North Sea or the North Atlantic, it must before now have been found in sonic of 

 the numerous collections made in those areas. In Bomeofthe Challenger gatherings it 

 occurred very abundantly, notably in those from the Australian coasts, and especially in 

 gatherings made at night-time : — Off Cape Howe, Australia (at night) ; off Port Jackson 

 (night and day) ; between Sydney and Wellington ; off Kandavw, Fiji; between Api ami 

 Cape York; between Arrou and Banda ; off north and south of Papua; al several 

 Stations amongst the Philippine Islands; in lat, 1.3° 50' S., long. 151° 49' E. (Station 181); 

 east of Japan (Station 237); in lat 30° 22' N., long. 154° 56' W. (Station 25G); in the South 

 Pacific (December 5, 187.1); in lat. 42° 43' S., long. 82° 11' W. (Station 302) ; in lat. 15 

 31' S., long. 78° 9' W. (Station 303); in lat, 3G° 44' S., long. 46° 16' W. (Station 325); 

 in the South Atlantic, lat. 38°, from March 3 to 5, 187G ; in lat. 9' 43' S., long. 13 

 51' W. (Station 342); in lat, 5° 28' N., long. 14° 38' W. to lat. 9° 9' N., long. 16 

 41' W. (Stations 349, 350, 351), and off St. Vincent, Cape Verde (April 26, 1876). 



Pachysoma, Claus. 

 Paclujsoma punctatum, Claus. 



Pachysoma punctatum, Claus, Die frei lebenJen Copepoden (1863), p. 1(53, pi. xxv. figs. 6-11. 



One specimen thus named by Dr. von Willimoes Suhm, was taken off Zamboahga. In 

 its present condition it is incapable of accurate identification, having been mounted for 

 the microscope and a good deal distorted; but so far as I can make out, the name is pro- 

 bably correct. 



Saph irina, Thompson. 

 Saphirina, Thompson, Zoological Researches, 1829. 



Body flattened, ovate or subovate, abdomen of the female usually much narrower 

 than the cephalothorax l ; last thoracic segment, in the male, rudimentary ; fifth pair of 

 feet small, one-jointed. Swimming feet two-branched ; both branches three-jointed. 

 Anterior antennae five- or six-jointed, the second joint elongated ; posterior pediform, 

 four-jointed, clawed- Caudal stylets laminated. Males often opaline or iridescent. 

 Unpaired eye, vesiculiform. Pigment-bodies of lateral eyes styliform. 



The species belonging to this genus, though occasionally parasitic (as in Salpce), are 

 taken generally by the towing net near the surface of the sea, and a large number have 

 been described from various parts of the world, — notably from the Atlantic Pacific, and 

 Mediterranean. In many of those points, however, which usually afford the best specific 



1 The number of abdominal segments is stated by Dana to be five or six, but the last thorai mentis counted 



by this author as belonging to the abdomen. 



(ZOOL. OEALL. EXP. PAIiT XXIII. 188.3.) '■ ''' 



