NO. 4 HARTMAN : POLYCHAETOUS ANNELIDS 431 



p. 290) but no description given of an anal funnel such as characterizes 

 that genus (see chart). 



Three other species of the genus have been described from extra- 

 American localities; they include D. carneus Ginibe (1870) from the 

 Red Sea, D. gajolae Eisig (1887) from the Gulf of Naples, and D. 

 microchaetus (Schmarda) (1861) from Ceylon. 



Another species, D. platyceps is newly described below. 



Key to Species 



1. Retractile branchiae consist of dendritically branched tufts . . 3 



1. Retractile branchiae consist of only a few filaments each . . 2 



2. Prostomium with a pair of pigmented areas or eyespots . 

 D. lunulatus 



2. Prostomium without eyespots D. glabrus 



3. Abdominal parapodial ridges low and glandular but not inflated ; 

 hooded hooks terminate in a primary and secondary fang sur- 

 mounted by 3 small denticles (pi. 55, fig. 3) . . D. platyceps 



3. Abdominal neuropodial ridges elevated or inflated above the 

 branchial pores; hooded hooks lack secondary fang (pi. 56, 



fig. 4) 4 



4. Anterior abdominal notopodia widely separated from each other 

 . D. caducus (Grube) 



4. Anterior abdominal notopodia proximal to each other, nearly 

 merging middorsally D. lumbricoides 



Dasybranchus lumbricoides Grube 

 Plate 56, Figs, 3, 4 



D. caducus lumbricoides Monro, 1933, pp. 1059-1060; Berkeley, 1941, 

 p. 49. 



Collections.— 903-Z^ (2) ; 905-38 (3) ; 1045-40 (2) ; 1450-42 (1) ; 

 1451-42 (1) ; numerous others come from intertidal areas of southern 

 California, Lower California and other parts of western Mexico; also 

 Lemon Bay, southwestern Florida and Beaufort, North Carolina. 



Anterior abdominal notopodial tori of a pair are proximal to each 

 other and after the first few segments nearly merge so that those of a pair 

 appear to be continuous across the middorsum. This character dis- 

 tinguishes the species from D. caducus (Grube) with which it might be 

 confused. Branchiae are retractile; where best developed, in median and 

 posterior abdominal segments, they consist of 30 or more filaments each ; 



