Petaloproctiis socialis Andrews. 1891 



P( tiil<ipyiirtiis ^■o^/r//^s■ Andrews. 18!)la: 295, pi. 

 17: Fig. 36-41. - Hart man, 1945: 40, pi. 8: 

 Fig. 3, 4. 



R('iii(irk.'<. — As in the widely distributed spe- 

 cies P. tirrivtiUi Quatrefages, there is a ten- 

 dency for the last few setigers to develo]) dorsal 

 fleshy lobes which slant backwards over the 

 next .segment. However, the two species are 

 easily distinguished for P. tci-n'rala has 22 seti- 

 gers while P. !<(>cialis has 19. According to 

 Arwidsson (1906: 118), PctaloproctH^ .tili,f(.r 

 (Verrill) from Mas.sachusetts has 21 setigers. 



Recordti. — On sheltered sandbanks in Beau- 

 fort Sound and in dredgings offshore in 20 m 

 (5,7, 11, 15,21,*). 



Dif<t)-ihini(i)t. — North Carolina; intertidal to 

 20 m. 



Nicomache trispinota Arwidsson. 1906 



p^i^TJie 14a 



NicdiiKtclii tris^piuatu Arwid.sson, 1906: 104, pi. 

 2: Fig. 74-77, pi. 3: Fig. 78, 79, pi. 8: Fig. 

 257-261, pi. 11: Fig. 349. 



Dixcriptioti. — Body broken and number of 

 segments uncertain. Head speckled with brown; 

 two groups of ocelli anteriorly; cephalic crest 

 high, nuchal grooves curved; no cephalic plate 

 or raised margin. Setigers 1 to 8 with a single 

 stout, smooth s])ine in each neuropodium. Seti- 

 gers 4 and 5 with 10 ov more neuropodial hooks. 

 Individual hooks with poorly marked tendons 

 and a vertical series of four teeth above main 

 fang. Posterior end (Figure 14a) with a short, 

 poorly defined achaetous preanal segment. 

 Pygidium slanting, with a central anus below 

 a deep pocket extending forward to level of 

 achaetous preanal segment. Pygidial funnel 

 rimmed with 24 subequal triangular cirri. 



Remarks. — The material is fragmentary so 

 that final identification is uncertain. The ob- 

 served characters agree with Arwidsson 's de- 

 scription of specimens from Norway which have 

 23 setigers and 1 achaetous preanal segment. 



Records. — Fragments of five specimens from 

 sand at 20 m off Beaufort (*). 



Distribution. — Norway and Greenland; 50- 

 350 m. 



Praxillella sp. 



Di script ion. — All specimens broken thus total 

 length and number of setigers unknown. Pro- 

 .stomium bluntly triangular with numerous eye- 

 specks. Cephalic plate oval with rim high, 

 .smooth and without obvious lateral or posterior 

 notches. Nuchal grooves straight. % length of 

 plate. Setigers 1, 2, and 3 with 2-3-3 neuropodial 

 spines, each with three vestigial denticles above 

 rostrum and a whi.sp of tendon below. Posterior 

 end with five achaetous preanal segments pre- 

 ceding pygidial ring. First preanal as long as 

 last setiger, second slightly shorter, third half 

 the length of last setiger and fourth and fifth 

 rudimentary and together equal to length of 

 third preanal. Pygidium with a circular ridge 

 bearing a ring of 10 long anal cirri and a pro- 

 truding anal cone. Anus with a large ventral 

 valve. Individual hooks with a compact vertical 

 series of five teeth above main fang and two or 

 three tendons below. 



R(niarks. — As far as I am aware, no species 

 of PraxiUclhi with five achaetous preanal .seg- 

 ments has been recorded from the United States, 

 but until the number of setigers can be deter- 

 mined from a complete, unbroken worm, no 

 specific identification is possible. 



Records.— on Beaufort in 80-200 m (*). 



Clymenella torquata (Leidy. 18.55) 



Civnu-ncllu tor(iii<ttti . - Hartman. 1945: 40, pi. 8: 

 Fig. 1,2. 



Records. — Cape Hatteras to Beaufort: inter- 

 tidal to 50 m (3, 5, 8, 11, 15, 18, *). 



Distribution. — Massachusetts to North Caro- 

 lina: intertidal to 50 m in sandbanks. 



Macroclymene zonalis (Verrill, 1874) 



CUinioiella :oH(ilis. - Magnum 1962: 7. 



R( cords. — Abundant at Beaufort, intertidal to 

 40 m (16,21, *). 



Distribi(tio)i. — North Carolina; intertidal to 

 40 m. 



Axiothella mucosa (Andrews, 1891) 



A.riothea mucosa Andrews, 1891a: 294, pi. 16: 

 Fig. 29-35. 



103 



