598 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 115 



much as Bleeker's name is based on a Russell (1803) species for which 

 no type material is available, I here designate SU 30502, a 368 mm. 

 immature male, as neotype of Scoliodon sorrakowa (label data with 

 the specimen is as follows: "Scoliodon walbeehmi, ]\Iadras Presidency, 

 India. Coll. Madras Fisheries Dept., 1923, Herre 1934 Expeditions. 

 Vizagapatam, Research. Madras, 1933")- The neotype is from the 

 same general locality as the holotype and it conforms to Russell's 

 figure and description except that it is approximately 9 mm. longer 

 than the holotype. 



I have examined all the type material of the nominal forms placed 

 into the synonymy of R. acvtus and find no reason for maintaining 

 any as distinct from that species. 



Material.^ — madeira: ISZZ 7593 (1: 415 mm.). Senegal: 

 MNHN A8005 (1: ca. 435); Goree, IFAN [no number] (2: 409-411, 

 embryos), IFAN [no number] (1 : 789), ZSZM 6288 (1 : 401) ; St. Louis, 

 NMV [no number] (1 : 490) ; Dakar, IRSN 8.395 (1 : 696) : Joal, USNM 

 196156 (1: 354, embryo). French guinea: Sobane, USNM 196155 

 (1: 409); Konkoure, Mundung, ISH 296/59 (2: 426-435): Tamara 

 Island, IRSN 6.907 (1: 516). Liberia: Kru Station, USNM 179719 

 (1: 387); Bushrod Island Beach, USNM 179718 (1: 678). Ghana: 

 Elmina, Ashantee, USNM 42247 (1: ca. 310), USNM 42212 (1: ca. 

 320): Prampram, BMNH 1939.7.12.1 (1: ca. 770): Accra, BMNH 

 1930.3.24.1 (1: 609). Nigeria: Lagos, BMNH 1937.4.19.1-2 (2: 

 308-352), BMNH 1936.8.20.1 (1: 477). Cameroon: Bibundi, SMW 

 931 (1: ca. 495, holotype of Carcharlas eumeces), NMV [no number] 

 (1: ca. 488). French equatorial africa: 29 miles south of Cape 

 Lopez, MRAC 80253 (1: ca. 856), MRAC 80253 (1: 775); 11 miles 

 south of Cape Lopez, IRSN 8.391 (1: 823). angola: 20 miles west 

 northwest of Moanda, IRSN 8.393 (1 : 445) ; 12 miles west of Moanda, 

 MRAC 80252 (1: 466); south of Safaire, MRAC 80172 (1: 356); 8 

 miles west of Rio Cuanza, IRSN 8.390 (1 : ca. 810). union of south 

 AFRICA: Durban, ANSP 73239 (1: 692), UND 82A-C (3 embryos). 

 PORTUGUESE EAST AFRICA: Dclagoa Bay, ANSP 55297 (1 : 355). Mozam- 

 bique: Beira, DIRU 12 (1: 489). Madagascar: east coast, ZSZM 

 7379 (1 : ca. 378) : Tamatave, NMV [no number] (1 : 510). Zanzibar: 

 MCZ 401 (1: 817, holotype of Scoliodon vagatus), MCZ 24 (1 : ca. 610). 

 GULF OF ADEN: Aden Harbor, RNH 12384 (2: 310-331). red sea: 

 USNM 47603 (1: 553). eritrea: HUI E57/660 (1: 730, and three 

 embryos), HUI E57/658 (1 : 649), HUI E57/662 (1 : 646), HUI E57/661 

 (1: 669), HUI E57/659 (1: 721), HUI E57/663 (1: 678), HUI E57/666 

 (1: 445), HUI E57/664 (1: 624); near Massawa, USNM 197343 (1: 

 635); Hanfilah, Hasein Island [Dahlak Archipelago], NMV [no num- 

 ber] (1: 761). SAUDI ARABIA: Djetta [Jidda], NFIS 2783 (1: ca. 440, 

 lectotype of Carcharias acutus, stuffed), NFIS 761 (2: 442-448). 



