NO. 1 HARTMAN : GONIADIDAE, GLYCERIDAE, NEPHTYIDAE 79 



Genus Glycerella Arwidsson, 1899 

 Type G. magellanica (Mcintosh) 



This monospecific genus has characters intermediate between Glycera 

 Savigny (above) and Hemipodus Quatrefages (below). The prostom- 

 ium is a very short cone, with few (4) annuli and the 4 terminal an- 

 tennae are long by comparison; eyes have not been described. The pro- 

 boscis is short and globular to somewhat prolonged when everted ; its 

 surface is strewn with many long organs in irregular arrangement. The 

 4 terminal jaws have a falcate piece that articulates with an aileron that 

 is rodlike but not so slender as that in species of Hemipodus. Body 

 segments are transversely marked so as to appear 2- or 3-annulate. All 

 parapodia are biramous; notopodia have slender, simple notosetae that 

 are supported by single rodlike acicula. Neuropodia have fanshaped 

 fascicles of composite falcigers; spinigers have not been described. The 

 falcigerous appendage is longer in the superior part of the fascicle, and 

 gradually becomes shorter in the inferior part of the fascicle. 



The single species, G. magellanica (Mcintosh) (1885, pp. 345-351) 

 is characterized for having a dark band about the basal ring of the 

 prostomium. Notosetal lobes in the anterior region of the body are long 

 and pointed; they exceed in length the neurosetal lobes. Dorsal cirri 

 are prolonged oval; ventral cirri are blunt and broad. The proboscidial 

 organs are very long, nearly cylindrical and closely set. Number of 

 segments is about 96; length is about 35 mm and width about 3 mm. 



Distribution. — Glycerella magellanica is recorded from the Strait 

 of Magellan in 345-400 fms, and off the Azores in 736-1229 meters 

 (Fauvel, 1914, p. 207). 



Genus Hemipodus Quatrefages, 1866 

 Type H. roseus Quatrefgaes 



This is spelled also Hemipodia Kinberg, 1866. 



If the genotype, H. roseus Quatrefages, 1866, can be proven con- 

 specific with H. simplex (Grube), 1856, the latter becomes the geno- 

 type since it is the older. 



The genus derives its name for having uniramous parapodia through- 

 out. It comprises a small group of species restricted to littoral zones in 

 the Pacific Ocean. All species are usually smaller and slenderer than 

 many species in the superfamily GLYCEREA. 



The prostomium is conical but the annuli are only vaguely visible; 

 they comprise a variable, 7 to 10 or more, number. Prostomial eyes have 

 not been described. The anterior end has 2 pairs of antennae, much as 



