FISHEtS OF THE PHOENIX AND SAMOAN ISLANDS 



115 



original description must be considered as fixing the name of P. 

 polyacanthus ^* on the species which is described by him and now 

 this description is amended below. 



Description based on three specimens. Measurements are expressed 

 in hundredths of the standard lengths, respectively, 36.3; 36.3; 35.7 

 mm. Length of head 36.4; 35.8; 37.2; greatest depth of body 28.6 

 31.4; 25.2; length of snout 5.8; 6.1; 6.2; diameter of eye 8.8; 8.5; 8.4 

 distance from tip of snout to posterior edge of maxillaries 19.3; 18.2 

 17.9; distance from tip of snout to origin of dorsal fin 41.4; 38.3 

 38.0; snout to origin of anal fin 60.5; 65; 63; distance from posterior 

 edge of anal fin to midbase of caudal fin 13.5; 11.0; 11.2; least dej^tli 

 of caudal peduncle 12.7; 12.1; 11.2; length of dorsal lateral line 58.6 

 55; 57.5; length of pectoral fin (base to tip of longest ray) 25.0; 25.6 

 86.0; length of pelvic fin 11; 13; 12.3; length of caudal fin 22; 20.6 

 20.8; length of base of dorsal fin 60.5; 49.6; 59; length of Joase of anal 

 fin 27.5 ; 29.2 ; 32.2. 



Counts of fin rays, gill rakers, and scales are given in table 12. 



115334, Rose Island lagoon, June 12 to 20, 1939, 1 .specimen. 

 115333, Rose Island, reef, June 11-14, 1939, 2 specimens. 



Tap.le 12. — Counts made on pseudochromids with VII dorsal spines 



Species 



Aporops bilinearis 



Pseudogramma polya- 

 canthus 



Number of fin rays 



Dorsal 



Spines 



Soft rays 



19 20 21 22 23 24 



Anal 



Soft rays 



16 17 18 19 20 



Pectoral 



15 16 17 



^* Since this was first written, Dr. F. P. Koumans kindly examined three of Bleeker's 

 types in Leiden and reports that he "did not find a continuation of the lateral line along 

 the midline of the caudal peduncle." The dorsal soft rays of the types of P. poli/acanthus 

 number 3 8, 18, 18 ; anal 16, 15, 16 ; scales 45, 45, — ; according to Dr. Koumans. Dr. de 

 Beaufort reports that the two specimens collected by the Xiboga Expedition, 46 and 31 mm. 

 long, have the lateral line develojxHl only anteriorly ; the scales number 49 and 51 ; dorsal 

 rays VII, 20 ; anal III, 16. 



