NO. 3582 GENUS ENTOMACRODUS — SPRINGER 55 



Entomacrodus stellifer lighti (Herre) 



Plate 5 

 Salarias lighli Ilonv, 1938, Proc. Biol. Soc. Washington, \ol. ol, p. 65 [Doflfl 

 Island, Amoy, China]. 



Remarks. — Males tend to have a higher average number of seg- 

 mented dorsal fin rays than do females. Of 50 males examined, 

 25 had 1 5 dorsal rays and 25 had 1 6 dorsal rays. Of 35 females examined , 

 29 had 15 dorsal rays and 6 had 16 dorsal rays. Other meristic 

 characters did not exhibit sexual dimorphism. 



Distribution (fig. 8). — This subspecies is restricted to the South 

 China Sea and its extension, the Gulf of Thailand. The area is more 

 or less enclosed by a chain of closely approximated islands extending 

 from Taiwan to Sumatra. These islands probably have acted as 

 an effective barrier, isolating populations of this taxon from populations 

 of the nominal subspecies. The same area also defines the distribu- 

 tion of E. t. longicirrus. 



Materi.\l. — China, Amoy, Dodd Island: SU 33001 (holotype of S. lighli); 

 Hong Kong, Sharp Island: SU 62072; Cape D'Aguilar: SU 62071; Shelter Island: 

 USNM 197976; Kiu Tsui Chau: USNM 197985; Thailand, llinson Chalam, 

 12°30'15"N, 101°26'45"E: SU 62093; Malaya, Singapore: SU 30664. 



Entomacrodus marmoratus (Bennett) 



Plates 6, la-h 



Blennius mannoialus Bennett, 1828, Zool. Journ., vol. 4, pp. 35-36 [Sandwich 

 Islands = Hawaiian Islands]. 



Description. — Segmented dorsal fin rays 14-16 (rarely 14), 

 \arying with population (table 20); segmented anal fin rays 15-17 

 (rarely 15), varying with population (table 20); posteriormost anal 

 pterygiophore supporting 1 or 2 external elements (60.2 percent 

 supporting 2); total gill-rakers on first arch 19-29 (usually 21-26); 

 pseudobranchial filaments 8-12 (rarely 11 or 12; 6 or 7 in specimens 

 19-22 mm SL); vertebrae 34 or 35 (34 in 38 of 48 specimens); supra- 

 orbital cirri 1-34, number increasing with increase in SL (table 21); 

 main or longest supraorbital cirrus with lateral and mesial branches 

 in specimens over 25 mm SL; nape with 2-20 cirri on each side (speci- 

 mens over 19 mm SL); number increasing with increase in SL (table 

 22); arising from 2 main bases on each side (85 of 93 specimens; on 

 at least 1 side in 90 of 93 specimens; from 1 base on each side in 3 

 of 93 specimens); the medialmost nuchal cirrus on each side with the 

 broadest base and usually the most branches; predorsal commissural 

 pores 3-23, number increasing with increase in SL (table 23); pre- 

 opercular series of pores ranging from all positions with simple pores 

 to all positions with pairs or multiples of pores (usually including 2 

 or 3 positions with simple pores); 1 pore before each anterior nostril 

 (2 before each nostril in only 1 specimen); lateral line terminating on 



