42 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 7 



Lepidonotus furcillatus Ehlers 

 Plate 5, Figs. 57, 58 



Lepidonotus furcillatus Ehlers, 1901, pp. 52-54, pi. 2, figs. 1-8; Augener, 



1913, pp. 102-103; Seidler, 1924, pp. 64-66. 

 Lepidonotus arenosus Ehlers, 1901, pp. 49-50, pi. 2, figs. 9-12. 



Collections.~2\2-3A, 171-34, 429-35, 863-38. 5 specimens. 



The remaining elytra, on segments 17 and 19 (212-34), are margin- 

 ally fringed and have numerous, low, rounded yellow tubercles over 

 the dorsal surface, and teardrop-shaped tubercles posterior to the elytral 

 scar (Ehlers, 1901, pi. 2, fig. 11). Notopodial and neuropodial setae 

 are pale. The latter are bifid subdistally. The first parapodium contains 

 some neuropodial setae that are tapering, pointed (pi. 5, fig. 58), others 

 that are distinctly bifid (pi. 5, fig. 57). 



A single posterior fragment from Bahia Honda retains one of the 

 last pair of elytra. This has, in addition to the characteristic blunt 

 tubercles, 4 blunt, slightly hooked, tall yellow spines along the posterior 

 border. The facial tubercle is elongate, papillar. 



Augener (1913, p. 102) reexamined both of Ehlers' types and con- 

 cluded they were identical, in spite of dififerences in the form of the 

 surface spines on the elytra. The specimens in the collections bear out 

 this conclusion, since some of the elytra have tall, slightly hooked spines, 

 others lack them. None, however, have bifid spines such as shown by 

 Ehlers (1901, pi. 2, fig. 5). 



Distribution. — ^Western South America, from Colombia south to 

 Chile; southwest Australia. Intertidal to 55 fms. 



Lepidonotus crosslandi Monro 



Plate 5, Figs. 62-69 



Lepidonotus crosslandi Monro, 1928a, pp. 553-555, figs. 1-4. 



Collections. — 375-35, 376-35. 6 specimens. 



The general color of the preserved (alcohol) specimens is fulvous; 

 most of the elytra have a characteristic broad, dusky crescent around 

 the posterior half of the elytral scar which gradually fades out at the 

 posterior margin. All of the specimens are broken across, transversely, 

 near the middle. Total length is 8 to 17 mm. 



The prostomium is typically lepidonotoid, with 4 small, black eye 

 spots on the posterior half and widest part (pi. 5, fig. 62). The anterior 

 edge of the second segment projects forward over the posterior margin 

 of the prostomium in the form of a pair of short flaps. 



