NO. 13 



POLYCHAETOUS ANNELIDS HARTMAN 



spicuous throughout. Color pale, with traces of a dark transverse 

 band across the middle dorsum of each segment in the anterior region. 

 Third tentacular segment without setae. 



Fig. 2. — Species of Anaitides, Nereis, and Neanthes. 



a, Anaitides lamellifera : prostomium, in dorsal view, showing median sulcus 

 and nuchal papilla, X 21 ; b, Nereis callaona: 50th parapodium, or 10th last, with 

 large dorsal ligules, X44; c-h, Neanthes roosevelti: c, prostomium and first 

 two segments, palpi somewhat turned under ; stippling indicates areas of brown 

 pigmentation, X44; d, portion of protruded proboscis, including areas V, VI 

 and parts of VIII, X 44 ; e, 38th parapodium, or 12th last, from left side, in 

 posterior view, X 86 ; /, homogomph notopodial seta from 38th parapodium, 

 X430; g, heterogomph, spinigerous neuropodial seta, from 38th parapodium, 

 X 430 ; h, heterogomph falcigerous neuropodial seta, from 38th parapodium, 

 X 430. 



The prostomium is emarginate at its posterior margin (fig. 2, a), 

 contrasting therein with the description of European specimens (see 

 Fauvel, 1923, fig. 52, a) and has an occipital button, contrasting with 

 Monro's specimen from Taboga Island (Monro, 1933, p. 22). The 

 parapodia have approximately the same outlines as shown by Monro 

 (1933. fi gs. 10, a, b). 



