Eisothistos teri 39 



articles. Pereopods 1-3 not subchelate, propodi relatively elongate, mini- 

 mally expanded. Pleopod 1 9, rami fused, together forming operculum; S 

 rami separate. Pleonites free, short, longer in 6 than in 9 . Telson lacking 

 statocysts. 



REMARKS Wagele (1979) first recorded species o^ Eisothistos preying on ser- 

 pulid polychaete worms in their tubes. 



The genus contains about 12 species in the Pacific, Indian Ocean, Carib- 

 bean, Antarctic, and Mediterranean. 



Key to species of Eisothistos 



1. 9 telson with middorsal spines; S pereopod 1 propodal palm with 19 



or 20 spines teri 



9 telson lacking middorsal spines; S pereopod 1 propodal palm with 

 1 1 spines petrensis 



Eisothistos petrensis Ktnsley, 1984 

 Figure 14A-E 



DIAGNOSIS 9: 4.0 mm. Antennular flagellum of six articles. Antennal 

 flagellum of six articles. Telson posteriorly faintly bilobed, margin strongly 

 serrate; faint anterior middorsal ridge; middorsally unarmed. Pereopod 1, 

 propodal palm unarmed. Pleopod 1 rami fused for V12 of length. 6: 2.0 mm. 

 Antennular flagellum of eight articles. Antennal flagellum of six articles. Per- 

 eopod 1 propodal palm with 1 1 fringed spines. Telson narrower than in 9 , 

 with middorsal ridge running almost entire length. 



RECORDS Carrie Bow Cay, Belize, 0.1-36 m; Looe Key, Florida, 5-6 m; 

 Turks and Caicos Islands, 1.0 m; St. Thomas, U.S. Virgin Islands, 7-10 m. 



Eisothistos teri Kensley and Snelgrove, 1987 

 Figure 14F-H 



DIAGNOSIS 9 : 3.2 mm. Basal antennular peduncle article bearing triangu- 

 lar apically rounded laminate process; flagellum of seven articles. Antennal 

 flagellum of six articles. Mandible with biserrate lamina dentata. Pereopod 1 

 propodal palm unarmed. Pleopod 1 rami fused for V4 of length. Uropodal 

 exopod with one or two strong slightly recurved spines on dorsal surface. 



