Ceratonereis versipedata Ehlers. 1887 



A'rrc/.s (C('rat(>)ierei>i) vemipcdatd Ehlers, 1887: 

 116, pi. 36: Fig. 5-10. - Monro, 19.'«b: 256. 



R(r(,rds. — On coral in 10-18 m off Beaufort 

 (14,20). 



Distribution. — North Carolina to Florida and 

 the West Indies in 10-18 m. 



Platynereis diimerilii 

 (Audouin and Milne-Edwards, 18.3.3) 



Plattpiereis d/niurilii. - Fauvel, 1923: 359, Fig. 

 141 a-f. - Pettibone, 1963a: 154, Fig. 43. - 

 Day, 1967: 306, Fig. 14.4 d-k. 



Ri cards. — Common in mucus tubes attached 

 to weeds all along North Carolina: intertidal 

 to a few meters (3, 5, 11, 13, 14, 18). 



Distribiitid)^ — Cosmopolitan in temperate 

 and tropical seas; intertidal to 10 m. 



Nereis (Nereis) lamellosa Ehlers, 1868 



Nereis (Ncrei.'i) lanxilasa. - Fauvel, 1936: 36. - 

 Day, 1967: 314, Fig. 14.7. a-t. 



Dcftcriptio}!. — Prostomium broadly triangu- 

 lar with brownish marks laterally. Proboscis 

 (Figure 5k, 1) with group I = 1; II = an 

 oblique double row; III = an oval group of 

 about 10: IV = a wedge of numerous points; 

 V = 0-3; VI = a rosette of 8-10; VII and 

 VIII = three or four irregular rows. Anterior 

 feet (Figure 5m) with three pointed notopodial 

 lobes and a longer dorsal cirrus. Middle feet 

 with only two notopodial lobes; posterior feet 

 with superior notopodial lobe expanded and last 

 few feet (Figure 5o) with superior notopodial 

 lobe broad and lamellar bearing the small dorsal 

 cirrus at its apex. Anterior notosetae all homo- 

 gomph spinigers with rather short blades; pos- 

 terior notosetae mainly homogomph spinigers 

 but some feet with one or two homogomph fal- 

 cigers with rather long blades (Figure 5n). 

 Anterior and posterior neurosetae essentially 

 similar, including homogomph and heterogomph 

 spinigers with short blades and heterogomph 

 falcigers with rather straight blades. 



Rci»ark.'<. — Nereis (Nereis) lamello.^a and 

 Nereis (Neaiitlies) succiiiea are very similar 

 apart from the presence of notopodial falcigers 

 in the former. They occur together in many 

 parts of the world although N. siiccinea extends 

 into estuaries while N. lameUosn does not. The 

 notopodial falcigers of .V. hiniellosa are not 

 numerous and readily lose their apices and 

 their shafts are no stouter than those of the 

 spinigers. As a result the complete absence of 

 notopodial falcigers and the separation of N. 

 sticciiiea from N. lamellosa is not easy. 



Records. — One specimen on coral in 10 m 

 off Beaufort (*). This is a new record for the 

 United States. 



Distribution. — Mediterranean, Morocco, Sen- 

 egal, and South Africa; 10-150 m. 



Nereis (Nereis) grayi Pettibone. 1956 



Nereis (Nereis) (/rayi Pettibone, 1956: 282, 

 Fig. 3; 1963a: 183, Fig. 42 i. 



Reco)xIs. — Five specimens off Beaufort in 

 20-200 m (*). 



Distribution. — Massachusetts; intertidal in 

 mud to 18 m. 



Nereis (Nereis) riisei Grube, 1856 



PMtrure .it>-j 



Nereis riisei. - Augener, 1922: 42; 1925: 6. - 

 Hartman, 1951: 46. 



Description. — Body up to 30 mm long; fresh 

 specimens often with a brown bar across peri- 

 stome or setiger 2 and dorsolateral spots on 

 anterior segments. Tentacular cirri often reach- 

 ing setiger 6. Proboscis (Figure 5g, h) with 

 area I = 1-3 points in line; II = a double row; 

 III = an oval group; IV = a wedge; V = 0; 

 VI = a close-set group of 3-9 points; VII and 

 VIII = one row of 3-7. Anterior feet (Figure 

 5i) with two notopodial lobes and a slender 

 dorsal cirrus longer than short superior lobe. 

 Posterior feet essentially similar. Notosetae 

 of posterior feet include a few spinigers and 

 usually one large homogomph falciger (Figure 

 5j) with an almost straight, lightly serrated 

 blade. 



39 



