NO. 1 hartman: goniadidae, glyceridae, nephtyidae 85 



brown horny jaw pieces located a short distance from the terminal end. 

 It opens as a vertical slit that is bounded distally by 14 to 22 soft, bifid 

 papillae, the shorter branch directed inward, the larger one forward. 

 At the subdistal outer end there are 14 to 22 rows of similar processes 

 (rarely the terminal and subterminal papillae are absent). The proximal 

 surface of the proboscis is smooth or finely prickled to wartlike. In so 

 far as can be seen, all of these various processes have no single large pore, 

 as do the comparable organs in the GLYCEREA (above). In some 

 species, notably Nephtys cilata, the dispersed proximal processes are 

 covered over with a thickened cuticle which may be penetrated by many 

 fine pores. The papillae have a broad base and the distal end is directed 

 away from the terminal papillae, agreeing therein with the condition in 

 the GLYCEREA. Some species are characterized for having a small 

 to large median tentaclelike process, similar to the other subdistal pa- 

 pillae, located at the middorsal or also midventral line; these probably 

 represent the fusion of a pair of proximal processes. The underlying 

 muscular and glandular layers have been investigated (Charrier, 1907). 



The peristomium or first setigerous segment is usually reduced in its 

 notopodial portion. It differs from successive ones in being narrower 

 and in having its parapodia more or less developed ; in some species they 

 may be directed forward at the sides of the prostomium. The first few 

 segments may develop gradually, or the second may be abruptly larger 

 than the first. Typical parapodia are clearly biramous with the 2 

 branches widely separated from each other. Each ramus has an aciculum 

 and setae arranged in preacicular and postacicular series. Acicula are 

 completely embedded or somewhat projecting distally, or recurved at 

 the tip. Acicular lobes are distally rounded, conical, incised or excavate; 

 their character has specific value. 



Presetal and postsetal parapodial lobes are highly developed and 

 characteristic for species. A distal extension of the notopodial postsetal 

 lobe, at its inferior edge is here designated notopodial cirrus (=dorsal 

 cirrus of some authors) since it is an outgrowth of the lower, not upper, 

 edge of the notopodium. This cirrus may be slender to foliaceous, small 

 to large. Continuous with it from its lower base, and hence also noto- 

 podial in origin, is the interramal cirrus or intercirrus (=branchia of 

 some authors) ; it extends distally as a sickle-shaped or cirriform process, 

 between the widely spaced branches of the parapodia. Its lateral edges 

 may be smooth, frilled or foliaceous. These processes are recurved (pi. 

 13, fig. 3) in species of Nephtys Cuvier, involute (pi. 18, fig. 3) in those 

 of A glaophamus Kinberg, and absent or nearly so in those of Micro- 



