POLYCHAETE WORMS, PART 1 



247 



Onuphis conchylega Fauvel, 1923, p. 415, fig. lG4,a-»t; 1953, p. 255, fig. 128,a-m. — 

 St0p-Bowitz, 1948a, p. 64.— Uschakov, 1955, p. 234, figs. 74, 76; 1957, 

 p. 1666.— Berkeley and Berkeley, 1956a, p. 236.— Fauvel and Rullier, 1957, 

 p. 92.— Clark, 1960, p. 23. 



Onuphis (Nothria) conchtjlega Day, 1957, p. 92; 1960, p. 338.— Knox, 1960a, p. 130. 



Description. — Length up to 150 mm., width up to 5 mm., segments 

 up to 150. Prostomium with a pah' of large eyes external to the 

 bases of the dorsolateral occipital antennae, with a pair of minute 

 eyes posterior to the frontal antennae. Ceratophores of occipital 

 antennae short, obscurely ringed. Three dorsal occipital antennae 

 subequal in length. Branchiae simple, cirriform (rarely bifid), begin- 

 ning on setigers 9-13 and continuing to near end of body. Tentac- 

 ular segment shorter than the following. First setigerous segment 

 nearly twice the length of those following, with parapodia greatly 



pre L 



post L 



Figure 65. — Onuphldac, a, Onuphis conchylega, parapodlum from first setiger, anterovcntra 

 view, b, Onuphis quadricuspis, parapodium from setiger 20. c, Onuphis eremita, first 

 setiger (after Claparede, 1868). d, Hyalinoecia tubicola, dorsal view anterior end. 



