A new species of the ghost shrimp genus Neocallichirus Sakai, 1988 (Decapoda: Axiidea: Callianassidae) from the southwestern Atlantic. Issue 1 (2nd January 2020)

• Record Type: Journal Article
• Authors: Hernáez, Patricio; Windsor, Amanda M.; Paula, Caio Augusto; Santana, William
• Is Part Of: Marine biology research. Volume 16:Issue 1(2020)
• Page Start: 50
• Page End: 60
• Publication Date: 2020-01-02
• Subjects: Macroinvertebrates -- burrowing shrimps -- intertidal zone -- sandy beaches -- Brazil -- American coast; Marine biology -- Periodicals; Marine biology -- North Atlantic Ocean -- Periodicals; 578.7705
• DOI: 10.1080/17451000.2019.1703003
• Languages: English
• ISSNs: 1745-1000

Abstract

ABSTRACT: A new species of ghost shrimp, Neocallichirus pinheiroi, is described based on specimens collected in subtidal habitats of Saquaira beach, northeastern coast of Brazil. This new species resembles N. lemaitrei Manning, 1993, but differs from it primarily in having a third maxilliped propodus expanded ventrally, and in the case of males, a large subtriangular tooth on the cutting edge of the major cheliped dactylus. Diagnostic features of the new species include: (i) frontal margin of carapace with rounded lateral projections not exceeding rostrum distal margin, (ii) third maxilliped carpus with row of sclerotized setae on median internal surface, (iii) minor cheliped with cutting edge of dactylus microscopically pectinate, (iv) endopod of male second pleopod with appendices interna and masculina. This is the seventh described species of the genus Neocallichirus from the western Atlantic and the fourth report of this genus in Brazil. A key for identification of western Atlantic species belonging to the genus is provided.