NO. 3 POLYCHAETOUS ANNELIDS 11 



portions of the series lack this character. Parapodial lobes are short, dis- 

 tally truncate. 



These specimens agree with the original account in all but two re- 

 spects — the prostomial processes are continuous with the prostomium, not 

 set off by a transverse line, and elytra are ornamented with some tall, 

 yellow, blunt spines instead of pustules as shown in the original account. 

 Ehlers' description was based on a single specimen, only 12 mm long. 



Distribution. — West Indies, in a few fms. 



Family Polyodontidae 



Eupanthalis oculata, new species 

 Plate 1, Figs. 5-8 ; Plate 2, Fig. 12 



Collection. — A 14-39 (1 anterior end). 



An anterior end of 42 segments measures 21 mm long (without 

 everted proboscis). The prostomium consists of 2 well-separated lobes, 

 with median fissure; eyes number 4, the anterior pair very large, dark, 

 occupy most of the prostomial lobes; the second posterior pair are very 

 small, near the posterior margin (pi. 2, fig. 12). Frontal paired antennae 

 are clavate; the unpaired one is inserted at the posterior margin of the 

 prostomium and extends forward to beyond the prostomial lobe ; it has a 

 slender terminal filament. Palpi are long, slender, about 3 times as long 

 as the prostomium. 



Elytra are thin, translucent, oval, with entire margin, colorless save 

 for a narrow brown crescent at the inner edge. The attachment is far 

 lateral, at the outer third or fourth. The first segment has dorsal and 

 ventral cirri resembling the paired prostomial antennae but slightly 

 longer; it lacks setae and probably acicula. The second segment resembles 

 those farther back, has well-developed neuropodial lobe, ventral cirri, and 

 first elytra. The notopodium is suppressed, as typical of the genus, and its 

 ventral cirri are about twice as large as those following. The third seg- 

 ment has dorsal and ventral cirri, resembles those farther back. 



Jaw pieces are yellow, the 4 main fangs falcate, the upper piece has 6 

 teeth right, 5 left, the lower has 5 teeth right, 7 left. In addition to the 

 long, median processes on dorsal and ventral sides, there are 6 elongate, 

 soft papillae, both above and below, on each side. 



Setae of the second segment (first setiger) are slender, slightly genicu- 

 late, terminate distally in a long, fine point. From the next there is a pos- 

 terior series of some coarser setae which are increasingly more conspicu- 

 ous farther back ; they are aristate. A typical parapodium is provided with 

 a heavy, yellow aciculum, a dorsal fascicle of slender, spinous setae in 

 which the spines are widely separated (pi. 1, fig. 8), about as many 



