356 PROCEEDINGS OF THE NATIONAL MUSEUM vol. loe 



them. He, however, did not know that Hyale inyacka Barnard was 

 a s}Tionym of Parhyale hawaiensis (Dana), as he had never seen the 

 latter species. 



The literature has been examined and in many cases it has been 

 impossible to determine which of these two species is being dealt 

 with, as the distinguishing characters have not been mentioned or 

 figured. The follomng identifications should have been P. fascigera: 

 Hyale irm^^es. Shoemaker (1933, p. 18, figs. 10-11); Hyale hawaiensis, 

 Shoemaker (1942, p. 18). 



The following identifications should have been P. hawaiensis: 

 Hyale aquilina, Delia Valle (1893, p. 523, pi. 16, figs. 43-47); Hyale 

 hrevijpes, Chevreux (1901, p. 400, figs. 15-18); Hyale nilssoni, Walker 

 (1905, p. 925, figs. 140-1); Hyale prevostii, Kunkel (1910, p. 66, fig. 

 25); Hyale poniica, Kunkel (1910, p. 69, fig. 26); Allorchestes aquilina, 

 Chevreux (1911, p. 240, pi. 16, figs. 20-25); Hyale prevostii, Shoemaker 

 (1920, p. 378); Hyale breiipes, Chilton (1921, p. 545, fig. 99); Hyale 

 inyacka, Chevreux (1925, p. 370, fig. 17); Hyale inyacka, Stephensen 

 (1933, p. 441, figs. 3, 4); Parhyale jasciger, Fage and Monod (1936, 

 p. 105); Parhyale inyacka, Barnard (1940, p. 472); Parhyale inyacka, 

 Stephensen (1948, p. 6); Hyale hawaiensis, Ruffo (1950, p. 57). 



In the collection of the U. S. National Museum there are specimens 

 of Parhyale hawaiensis from: Atlantic Ocean: Cm-agao; Bonaire; 

 Venezuela; Brazil; Dominica; St. Croix; Puerto Rico; Haiti; Colombia; 

 Texas; Florida; North Carolina; Bermuda; and Belgian Congo. 

 Pacific Ocean: Lower California; Costa Rica; Panamd; Ecuador; 

 Hawaii; Galapagos Island; Johnston Island, Oceanica; New South 

 Wales; and India. 



Remarks: Amphithoe aquilina Costa (1857, p. 202, pi. 2, fig. 7) 

 was described from the Mediterranean, and transferred by Stebbing 

 (1906, p. 565) to Hyale. Chevreux and Fage (1925, p. 289, figs. 300, 

 301) figured it and placed it in Allorchestes because of the lobe of the 

 fifth joint of the second gnathopod of the male. Their figures are 

 strongly suggestive of Parhyale: The gnathopods and first uropod 

 are much like those of P. haivaiensis, but the sixth joint of the fourth 

 and fifth peraeopods does not bear spines on hind margin, which 

 would indicate P. fascigera, SLud the fifth joint of the second gnathopod 

 of the male (fig. 301 gn 2 cf) bears a narrow lower lobe, but their speci- 

 men may not have been fully mature. The third uropod does not 

 show a second ramus, but it could easily have been overlooked. 



Hyale gracilis Iwasa (1939, p. 282, text-fig. 19, pi. 19) is strongly 

 suggestive of Parhyale haivaiensis. James D. Dana (1853 and 1855) 

 described and figured Allorchestes gracilis from Tongatabu, and 

 Stebbing (1906, p. 572) transferred it to Hyale. Iwasa's name is 

 therefore preoccupied, and I suggest the name Hyale iwasai for it. 



