no. i7<;o. 



STALK-EYED CRUSTACEA OF PERU RATH BUS 



563 



twisted, unarmed; fingers broad, especially the dactylus, locking 

 together, tips corneous. Second legs slender, chelate; carpus 5-artic- 

 ulate, first article equal to sum of other four; second, third, and fourth 

 articles small, subequal; last three legs simple. 



Length of body about 30 mm., in Peruvian specimens about 20 mm. 



Taken in trawl, Bay of Sechura, west of Matacaballa, depth aboul 5 fathoms, April 

 8, 1907. 



Not previously known from Peru. 

 Distribution. — Peru; Chile; Australia? 



FlG. 3.— SVNALPHEUS LATASTEI. AFTER COUTIERE. a, FRONTAL AND ANTENNAL REGION, MALE, AUS- 

 TRALIA; a', FRONTAL AND ANTENNAL REGION, FEMALE, CHILE! C, CARPOCERITE; A". LARGE CHELA; A', 

 SMALL CHELIPED OF FIRST PAIR! /. FOOT OF SECOND PAIR; ill, Foot OF TIIII!I> PAIR. 



SYNALPHEUS TOWNSENDI PERUVIANUS, new subspecies. 



Plate 53, fig. I. 



Similar in form to the preceding. Rostral spine slender, exceeding 

 slightly the frontal spines. Antennular peduncle very long; first 

 segment exceeds rostrum by a distance equal to length of second 

 segment; second segment one and a half limes third; stylocerite 

 reaching middle of second segment. Antenna! peduncle overreaching 

 slightly the antennular peduncle; scale reaching end of antennular 

 peduncle; basicerite unarmed above, lateral spine reaching middle 

 of first antennular segment. Palm of larger claw ending in a curved 



