21b. Middorsal tooth, if present, located anteriorly in pharynx (Figure 

 30-100a) 22 



22a. Setae including claw-like hooks (Figure 30-102c,d); parapodia with 



or without accessory branchial lobes (Figure 30-102b) 



Branchiosyllis, p. 30-105 



22b. Claw-like setae absent; parapodia without accessory branchial 

 lobes 23 



23a. All setae simple 24 



23b. Some setae composite 25 



24a. Margin of pharynx smooth, middorsal tooth present 



Haplosyllis, p. 30-109 



24b. Margin of pharynx denticulate (Figure 30-106a), middorsal tooth 



absent Geminosy His , p. 30-111 



25a. Margin of pharynx denticulate (Figure 30-110e) 



Dentatisyllis, p. 30-113 



25b. Margin of pharynx smooth (Syllis) 26 



26a. Simple or pseudocomposite setae present in midbody region (Figure 



30-U2d,e) Syllis (Syllis), p. 30-116 



26b. Simple setae restricted to posterior region 27 



27a. Superior composite setae spinigerous, blade-length ratio at least 

 5:1 (Figures 30-114b, 116d) Syllis (Ehlersia), p. 30-118 



27b. Superior composite setae falcigerous, blade-length ratio less than 

 5:1 Syllis (Typosyllis), p. 30-124 



*Not found in Gulf of Mexico BLM-0CS collections. 



Genus Proceraea Ehlers, 1864 



TYPE SPECIES: Proceraea picta Ehlers, 1864. 

 REFERENCES : 

 Gidholm, 1967:203. 

 Fauchald, 1977a:83. 



DIAGNOSIS: Prostomium with three antennae; palps small, fused, ventral- 

 ly directed. Two pairs of tentacular cirri. Nuchal epaulettes usually 

 short. Antennae, tentacular and dorsal cirri cylindrical; cirrophores 

 absent. Bayonet-setae with truncate spiny tips, without lateral spines, 

 with shafts about same thickness as shafts of composite falcigers. 

 Ciliation restricted mainly to nuchal epaulettes. Pharynx sinuous, 

 trepan usually with alternating large and small teeth in multiples of 

 nine. 



Proceraea ?cornuta (Agassiz, 1863) 

 Figures 30-1, 2a-c 



Autoly tus cornutus — Pettibone, 1963:144, fig. 37e [Not Autoly tus 



fallax— Pettibone, 1954:247]. 



Autolytus ( Regulatus ) cornutus — Imajima, 1966:49, fig. 13a-i. 



30-8 



