Telso 



Abdominal 

 somites 



Thoracic 



somites Carapace 



Rostral plate 

 Eve 

 Antennule 



Mole copulatory tubes 

 Third pereiopod 



rst 

 Mandibular palp 

 Raptorial clow 



Third moxiliiped 

 Fifth moxiliiped 



Epipod 



Ventral spine 



•Antenna 

 Antenna! scale 

 moxiliiped 



Figure 1. — Morphological structures and terms used in descriptive accounts of stomatopods (from Manning. 1969). 



Corpus 



Merus 



Dorsal ridge 

 of corpus 



Proximal. Movable 

 te>th 



Pectinations 



Teeth of doctylus 



Ischium 



Propodus 



Dactylus 



Figure 2. — Structure of raptorial claw 

 (from Manning, 1969). 



KEY TO STOMATOPODA OF THE NORTHEASTERN UNITED STATES 



1. Carapace with median carina terminating an- 

 teriorly in a bifurcation (Fig. 3). Telson lacking 

 movable marginal teeth. 

 Family Squiilidae: Squilla cinpiisa 



Figure 3. — Squilla cinpiisit. Anterior 

 portion of body, dorsal view. 



1. Carapace lacking median carina. Telson with 

 one pair of movable marginal teeth. Family 

 Lysiosquillidae 



