APOGONID FISHES OF THE INDO-PACIFIC — LACHNER 



595 



is placed. The significant characters differentiating the species of 

 this group are listed in tables 5 and 6, discussed in the accounts of the 

 species, and portraj^ed on plates 18, a to c, and 19. 



A B 



Figure 105. — Sketch showing: a, Triangular cheek mark in Apogon savayenMs 

 Gunther; b, narrow elongate mark in A. nuhilus Garman. 



APOGON ERDMANI, new species 



Plate 18, a 



Holotype. — U.S.N.M. No. 147518, a female specimen, 60 mm. in 

 standard length, collected by Donald S. Erdman, July 2, 1946, at 

 Jidda, Red Sea. 



Paratypes.—V.^.'^M.. No. 112040, 21 specimens, 39 to 59 mm. in 

 standard length, taken with holotype and bearing same data. 

 U.S.N.M. No. 147522, a specimen 47 mm, in standard length, collected 

 by Erdman and Azizz, July 14, 1948, at Jidda, Red Sea. 



Description. — This description is based on the holotype and para- 

 types listed above. The counts are recorded for the holotype and fol- 

 lowed by data from 10 paratypes in parentheses. Wlien the counts for 

 the paratypes are identical with those of the holotype, but one number 

 is given. Dorsal rays VII-I, 9; anal rays II, 8; pectoral rays 13; 

 lateral line scale rows 23 (23 to 24) ; scales above lateral line 2; scales 

 below lateral line 6. Measurements for the holotype and 7 paratypes 

 are presented in table 4. 



Gill rakers 8 + 1 + 20 (6 to 8+1 + 18 to 21, total 25 to 30) ; third 

 spine of spiny dorsal longest, about twice in head length ; second spine 

 less than one-half length of third spine ; first spine minute, less than 

 one-fifth length of second spines; second anal spine about equal to 

 length of third dorsal spine; posterior margin of preopercle finely 



