Crangonidae and Glyphocrangonidae (Decapoda; Caridea) of the Southern Gulf of Mexico Author Vázquez-Bader, Ana Rosa Laboratorio de Ecología Pesquera de Crustáceos. Instituto de Ciencias del Mar y Limnología, UNAM, Av. Universidad # 3000, Universidad Nacional Autónoma de México, CU, Distrito Federal, 04510. México. E mail: ana-rosav @ hotmail. com, gracia @ unam. mx Author Gracia, Adolfo text Zootaxa 2013 2013-06-07 3669 3 367 383 journal article 10.11646/zootaxa.3669.3.10 1175-5326 5266732 B9C2D423-6E86-4B42-8689-0A3107846AC4 Glyphocrangon aculeata A. Milne Edwards, 1881 ( Figs. 4 , 5 ) FIGURE 4. Map of distribution of G. aculeata in the southern Gulf of Mexico. Abbreviations: T= Tamaulipas, V= Veracruz, TA= Tabasco, CA= Campeche, Y= Yucatán, QR= Quintana Roo. Glyphocrangon aculeatum A. Milne Edwards, 1881: 5 ( type locality: off St. Vincent , West Indies , 1030 m ). Glyphocrangon aculeata Bate 1888: 521 , pl. 94, fig. 1.— Moreira, 1901: 15 .— Pequegnat, 1970: 104 .— Holthuis 1971: 323 , fig. 10.— Coelho & Ramos 1972: 156 .— Boschi 1973: 234 , fig. 1b.— Forest & Holthuis 1997: 56 .— Ramos-Porto & Coelho 1998: 342 .— Komai 2004a: 32 , fig. 1A, B.— Wicksten & Packard 2005: 1757 .— Felder et al . 2009: 1061 . Material examined. BIOREPES2 stn 5, 2, ovigerous 6; stn 6, 1, ovigerous 1; stn 7, 1, 4; stn 8, 1, 2, ovigerous 1; stn 14, 4, ovigerous 5; stn 27, 4, 11, ovigerous 10; stn 28b, 4, 2, ovigerous 1; stn 35, 2; stn 36, 1, ovigerous 3. BIOREPES3 stn A15, ovigerous 13; stn A16, 3, 7, ovigerous 1; stn A17, 1, 4; stn A18, 3, 3. COBERPES stn A2, ovigerous 7; stn A5, ovigerous 1; stn A6, 1, 2; stn B6, 3, 4, ovigerous 7; stn B8, 1, 8, ovigerous f6; stn B9, m4, f6, ovigerous f8; stn B10, m2, f13, ovigerous f16; stn E1, m1, ovigerous 1; stn E2, 1; stn Ω8, ovigerous 1; stn Ω9, 3, f4, ovigerous 1; stn Ω10, 2, 1; stn Ω13, 1, 2, ovigerous 6. COBERPES 2011 stn B1, 2; stn B2, 2, ovigerous 2; stn B3, ovigerous 1; stn B4, 1; stn B7; ovigerous 1; stn B9, 1; stn C4, ovigerous 1; stn C5, ovigerous 4; stn D1, ovigerous 2; stn D6, ovigerous 4; stn D7, 4, ovigerous 3; stn D9, ovigerous 1. Overall Geographic and Bathymetric Distribution. This species has been recorded off Cape Hatteras ( North Carolina , U.S.A. ) to off Recife (NE Brazil ), the entire Gulf of Mexico (NW; NE; SW; SE ) and Caribbean Sea; at a 707–1760 m depth range ( Holthuis, 1971 ; Felder et al . 2009 ). Distribution in the Southwestern and Southeastern Gulf of Mexico . We collected this species in Tamaulipas : Laguna Madre (WNW); in front of Veracruz : Nautla and Coatzacoalcos rivers (WSW); Tabasco : Carmen-Machona Lagoons, Grijalva-Usumacinta rivers (SSW); Campeche : San Pedro-San Pablo rivers, Términos Lagoon (SSW); Yucatán : N of Alacranes reef (ESE); at a depth range of 443.8 to 1144 m . It was found inhabiting clay and shell sediment ( Fig. 4 ). FIGURE 5. Size distribution by sex and depth interval of G. aculeata , a) females; b) males; c) ovigerous females. Remarks. A total of 242 individuals of G. aculeata was collected in all cruises. Although this species occur in the entire Gulf of Mexico , we obtained the highest abundances in the sectors SSW and ESE, stations located in front of Coatzacoalcos River ( 867 m depth) and W of Alacranes reef, Yucatán ( 828.9 m depth). Sex ratio was 4.6 females to 1 male ; ovigerous females accounting 57.3 % of the total females. Length carapace distribution showed that males were smaller than females. Ovigerous female size range was 15.1–32.0 mm (mean 25.32 ± SD) whereas females varied between 10.8–30.7 mm CL (mean 20.53 ± 3.99 SD), and males size range was 12.8–23.2 mm CL (mean 18.7 ± 2.62 SD) ( Fig.5a, b, c ). The widest depth distribution range was observed in the ovigerous females ( 443.8–1047 m ) compared to the non-ovigerous females and males depth distribution range (681.6–1044.0 and 620.0– 1144 m , respectively). The ovigerous females occurred in spring, summer and autumn at depths between 800–899 m ; but the maximum number was registered in summer (COBERPES 2009) off the Coatzacoalcos River. Although we observed a tendency of minor sizes to be present at deepest intervals, the ANOVA did not show a significant difference (males: F= 1.706, p= 0.1686; females: F= 1.9583, p= 0.0937; ovigerous females: F= 6721, p= 0.6454).