Hartmann-Schroder, 1971:123. 



Fauchald, 1977a:76. 



DIAGNOSIS: Prostomium with two antennae and two biarticulate palps. 



Six pairs of tentacular cirri. Parapodia subbiramous, notosetae few or 



absent. Neuropodia with three conical lobes. Pharynx with marginal 



papillae, jaws present or absent. 



Key to the Gulf of Mexico BLM-OCS Species of Nereimyra 



la. Eyes absent; blades of neurosetae often with basal spur (Figure 

 28-20d) Nereimyra sp. A, p. 28-23 



lb. Eyes present; blades of neurosetae without basal spur (Figure 28- 

 22c, d) Nereimyra sp. B, p. 28-25 



Nereimyra sp. A 



Figures 28-19, 20a-e 



MATERIAL EXAMINED: 

 Gulf of Mexico BLM-OCS: 



SOFLA 5-5/81 (1 spec, USNM 75325), 4B-7/81 (1 spec, USNM 75324); MAFLA 

 2104J-2/78 (1 spec, USNM 71779), 2316H-7/76 (1 spec), 2957C-8/77 (1 

 spec), 2957D-8/77 (1 spec), 2957H-8/77 (2 spec), 2957J-8/77 (2 

 spec. ) . 

 DESCRIPTION: 



Length, 5.2+ mm; width, to 0.6 mm. Body small, slender; all specimens 

 incomplete with up to 26 setigers. Prostomium pentagonal to quadrangu- 

 lar, posteriorly prolonged as two large nuchal ridges (Figure 28-20a). 

 Eyes absent. Lateral antennae slender, cirriform; median antenna ab- 

 sent. Palps same length as antennae, bases and styles equal in length. 

 Tentacular and dorsal cirri long, distinctly articled distally. First 

 tentacular segment not visible dorsally. Notopodia reduced to two 

 slender ac.icula supporting dorsal cirrophores, setae absent. Neuropodia 

 well-developed with conical acicular lobe and lip-like pre- and post- 

 setal lobes (Figure 28-20b). Ventral cirri short, digitiform or ta- 

 pered. Neurosetae with long extension of shaft-head bifid. Blades 

 lightly serrate, unidentate anteriorly (Figure 28-20c), becoming biden- 

 tate, with or without basal spur (Figure 28-20d,e); with subapical spine 

 or sheath, and often with lateral sheaths (Figure 28-20c,e); blade- 

 length ratio 1.6-3.5:1. Pharynx extending to setigers 4-8, margin 

 surrounded by 20-30 small papillae, jaws absent. 



REMARKS: Nereimyra sp. A resembles N. multipapillata Theel, 1879, from 

 the Arctic, in lacking notosetae, in having two notoacicula, and in 

 having 20 or more marginal papillae surrounding the pharynx. However, 

 characteristics of the neurosetae of the latter species are unknown. 

 Gulf of Mexico BLM-OCS specimens were previously referred to several 

 other genera. 



GULF OF MEXICO BLM-OCS OCCURRENCE: Few stations off western Florida 

 (Figure 28-19); 35-180 m; coarse to medium sand, silty fine sand. 



28-23 



