FIGURE 21. Leptalpheus azuero Anker, 2011 (a–e), Leptalpheus felderi Anker, Vera Caripe & Lira, 2006 (f–h), and Leptalpheus forceps Williams, 1965 (i–k). Leptalpheus azuero: ovigerous female (cl 4.7 mm), ULLZ 11823 [USNM 1545912], from Las Peñitas, Nicaragua (a, b) and ovigerous female (cl 6.4 mm), ULLZ 5917 [USNM 1541195], from Estero Aserradores, Nicaragua (c–e): a, major chela, lateral; b, same, mesial; c, major chela, dorsolateral; d, same, dactylus and pollex, dorsolateral; e, same, fingers opened, lateral. Leptalpheus felderi: male (cl 8.5 mm), UF 48038, from Wachapreague, Virginia, USA: f, major chela, mesial; g, same, dorsolateral; h, same, dactylus and pollex, dorsolateral. Leptalpheus forceps: male (cl 8.8 mm) (i), female (cl 5.3 mm) (j), ULLZ 18053 [USNM 1706385], from Bay St. Louis, Mississippi, USA and female (cl 6.0 mm) (k), ULLZ 5593 [USNM 1541048], from Nuevo Campechito, Mexico: i, frontal margin, dorsal; j, same; k, uropod with caudal appendix, dorsal.

Published as part of Scioli, Justin A., Robles, Rafael & Felder, Darryl L., 2024, New species and records of the symbiotic shrimp genus Leptalpheus Williams, 1965, with notes on Fenneralpheus Felder & Manning, 1986, and preliminary molecular analysis of phylogenetic relationships (Crustacea: Decapoda: Alpheidae), pp. 1-72 in Zootaxa 5466 (1) on page 38, DOI: 10.11646/zootaxa.5466.1.1, http://zenodo.org/record/11613222