Foster & LeCroy, 1991 : 259 Haustorius Haustorius Two new species of sand-burrowing amphipods of the genus Haustorius Müller, 1775 (Amphipoda: Haustoriidae) from the northwestern Gulf of Mexico Hancock, Zachary B. Wicksten, Mary K. Zootaxa 2018 2018-08-14 4459 1 101 127 3JWH2 Foster & LeCroy, 1991 , Foster & LeCroy 1991 [151,680,1340,1366] Malacostraca Haustoriidae Haustorius GBIF Animalia Amphipoda 2 103 Arthropoda species jayneae     Haustorius jayneae,  Foster & LeCroy, 1991: 259–270, figs. 1–4.  Haustorius new species, Saloman & Naughton, 1977: 359– 352.  Haustoriusspecies, Saloman & Naughton, 1977: 67–68.   Diagnosis.Antenna 1, flagellum with 9 articles, accessory flagellum with 4–5 articles; antenna 2 with 10 articles; mandible incisor bifid, with 8–10 accessory blades; mandibular palp, article 3 with 17 spines in comb row; maxilla 2, outer plate lunate, narrowing distally to a slight point; maxilliped, outer plate broad, anterior angle obtuse with toothlike spines on 1/4 length of oral margin; coxa 1 deeper than wide; pereopod 3 article 5 posterior lobe greater than 1.2x length of anterior margin; pereopod 6, article 4 posterior margin distinctly rounded distally with 4 large spines; pereopod 7, article 5 subrectangular with proximal and distal margins parallel, posterior margin 1/2 length of anterior, with spines 1/2 length of distal margin; uropod 1, peduncle with 1–3 proximal spines, 2–3 interramal spines, 1–3 distal setae; telson without posterodistally produced region, posterior margin relatively flat, acutely cleft.  Range.Carrabelle Beach, Florida to Mississippi Sound.   Remarks. Sweet (1996)identified two new haustorius-like species west of the Mississippi River in Pass Christian, MS, Dauphin Island, AL, and Carrabelle Beach, FL. However, we located only  Lepidactylus triarticulatusat Pass Christian and  H. jayneaeat the latter locations. This represents a range extension for  H. jayneaesouthward from Cape San Blas, its original southern range, to at least Carrabelle Beach, where it was found in considerable numbers.