NO. 1 HARTMAN : GONIADIDAE, GLYCERIDAE, NEPHTYIDAE 125 



Aglaophamus tabogensis (Monro), new combination 



Nephthys tabogensis Monro, 1933a, pp. 53-55, fig. 23 (in part). 



Material examined. — Type collection in the British Museum, Lon- 

 don, England. 



This species is referred to Aglaophamus because it has interramal 

 cirri that are involute, not recurved. Both notopodia and neuropodia 

 have furcate setae. The proboscis has 20 terminal, bifid papillae; the 

 subterminal papillae are in only 2 or 3 in a row and there is a single 

 giant one middorsally. The prostomium is rectangular seen from above 

 and longer than wide ; there are no visible eyespots. 



Involute interramal cirri are present from segment 8 and disappear 

 between segments 40 and 50. They are best developed between segments 

 25 and 35 where they are spiralled and greatly exceed in size their 

 respective notopodial cirri. The latter are small and cirriform except 

 between segments 20 to 25 where they are much prolonged though still 

 cirriform; here they exceed in length their accompanying interramal 

 cirri. Acicular lobes are acutely conical. Neuropodia have a small erect 

 lobe on the superior edge; it is present at least on anterior segments 

 through the twenty-fifth but is nowhere long. 



A. tabogensis (Monro) was first thought to include individuals with 

 interramal cirri involute and also recurved. I am regarding these as 

 belonging to 2 different species in 2 genera, the other named Nephtys 

 monroi (see above). 



Distribution. — A. tabogensis (Monro) is known only through its 

 original discovery from Taboga Island, between Taboga and Taboguilla, 

 Pacific side of Panama in 6-12 fms, from a muddy bottom. 



Aglaophamus erectans, new species 

 Plate 19, figs. 1-10 



Nephthys malmgreni Treadwell, 1914, p. 192, in part. Not Theel, 1879. 



Collections.— 1133-40 (9); 1256-41 (1); 1262-41 (1); 1311-41 

 (1); 1313-41 (1); 1316-41 (1); 1318-41 (2); 1321-41 (6); 1366-41 

 (1) ; 1435-41 (1) ; near Guadalupe Island, off western Mexico in 40 

 fms, green mud, collected Sept. 1, 1906 (5) ; Gulf of Catalina, Cali- 

 fornia in 165-230 meters in green mud and sand, collected June 28, 

 1901, by C. A. Kofoid (8) ; off Redondo Beach, California in 50-100 

 fms, collected June, 1941 by T. Burch (8). 



There is no distinct color pattern but the prostomium (fig. 1) is 

 partly diffused with brown, and the ventral side of the body has a broad 

 brown line in the middle. Length of 34 or 35 segments is 21 to 27 mm; 



