136 BULLETIN 10 0, UNITED STATES NATIONAL MUSEUM 



23533. Tidore Island, south of Ternate. November 25, 1909. Length 101 mm. 

 11161. Nan Wan Bay, south Formosa. January 15, 1910. Length 176 mm. 



Genus SYNAGROPS Giinther 



Synagrops Gunther, Rep. Voy. Challenger, vol. 22, 1SS7, p. 16. Type 



Melanostoma japonicum Steindachner and Doderlein, monotypic. 

 Melanostoma (not Schiner 1860, Stal 1872) (Doderlein) Steindachner 



and Doderlein, Denkschr. Akad. Wiss. Wien, vol. 48, 1884, p. 5. Type 



Melanostoma japonicum Steindachner and Doderlein, monotypic. 

 Parascombrops Alcock, Journ. Asiat. Soc. Bengal, vol. 58, pt. 2, 1889, p. 296. 



Type Parascombrops pellucidus Alcock, monotypic. 

 Hypoclydonia Goode and Bean, Ocean. Ichth., 1895, p. 236. Type Hypo- 



clydonia bella Goode and Bean, monotypic. 

 Macculochina (Jordan) Jordan and Jordan, Mem. Carnegie Mus., vol. 10, 



No. 1, 1922, p. 44. Type Synagrops serratospinosa Smith and Radcliffe, 



orthotypic. 



Body rather elongate, compressed. Eyes large. Jaws with bands 

 of villiform teeth and strong canines in front ; small or villiform teeth 

 on vomer and palatines. Preopercle with angle produced, edge and 

 ridge serrate or entire. Gill rakers 10 to 12 on lower branch of first 

 arch. Scales rather large, cycloid, deciduous, about 30 in lateral line 

 to caudal base. Scales on head very small. Dorsal with 9 spines, 

 soft fin with spine and 8 or 9 rays. Anal with 2 spines and 6 or 7 

 rays. Caudal forked. Vent normal. Bathypelagic. 



ANALYSIS OF THE SPECIES 



a 1 . Synagrops. Fins all smooth, without any serrae on spines; body slender 



and tapering j aponicus 



a 2 . Parascombrops. Ventral spines at least with an external row of serrae. 

 bK Only ventral spines with outer edges serrated; snout nearly long as eye; 



body slender, depth 3% to 4 . philippinensis 



6*. Front of spinous dorsal of spinous anal and of ventral spines all antrorsely 

 serrated; snout much shorter than eye; body deep, depth 3 to 3J^. 



serratospinosus 



SYNAGROPS JAPONICUS (Steindachner and Doderlein) 



Melanostoma japonicum (Doderlein) Steindachner and Doderlein, Denk- 

 schr. Akad. Wiss Wien, vol. 48, 1884, p. 5, pi. 1, fig. 2. Tokyo. — Jordan 

 and Synder, Annot. Zool. Japon., vol. 3, 1901, p. 72 (Yokohama); Proc. 

 U. S. Nat. Mus., vol. 23, 1901, p. 908 (copied). 



Synagrops japonicus Gunther, Rep. Voy. Challenger, vol. 22, 1887, p. 16 

 (copied). 



Synagrops japonica Fowler and Ball, Bishop Mus. Bull., No. 26, 1925, p. 

 13 (Lahaina, Maui). — Jordan and Hubbs, Mem. Carnegie Mus., vol. 10, 

 No. 2, 1925, p. 231 (Misaki).— Fowler, Mem. Bishop Mus., vol. 10, 1928, 

 p. 165 (Lahaina, Maui). 



Melanostoma argyreum Gilbert and Cramer, Proc. U. S. Nat. Mus., vol. 19, 

 1897, p. 416, pi. 39, fig. 3. Off Hawaiian Islands, in 295 to 278 fathoms. 



Synagrops argyrea Gilbert, Bull. U. S. Fish Comm., vol. 23, pt. 2, 1903 

 (1905) p. 618 (Pailolo Channel, off Oahu, off Maui, in 122 to 290 fath- 

 oms). — Fowler, Bishop Mus. Bull., No. 22, 1925, p. 8 (Guam). 



Synagrops malayanus Weber, Siboga Exp., vol. 57, Fische, 1913, p. 196, 

 fig. 52. Bali Sea, Timor Sea and Lobetobi Straits. 



