Annelids of Alaska— HARTMAN 
39 
short and terminates at its anterior end in a 
short palpode medially; it has a pair of dark 
eyespots dorsally. The palpi are thick and their 
bases occupy much of the frontal region. The 
tentacular cirri are similarly thick, few in num¬ 
ber, and inserted on a short anterior region. 
Notopodial tufts are first present from the 
second setigerous segment. The eleventh seg¬ 
ment is modified and about twice as long as the 
segments proximal to it; its notopodial tuft is 
normal, but its neuropodia are modified and 
each is provided with a single heavy, simple, 
yellow hook (Fig. 11 b) (in one case two 
hooks are present). These hooks are much like 
the shafts of the composite hooks except that 
they are much thicker. This modified segment 
seems to be a device used in tube construction 
or anchorage within the tube. 
Parapodial ridges have transverse series of 
small papillae that are continued only slightly 
beyond the parapodial bases. Notopodial tufts 
are similar to one another throughout; usually 
each has about six slender, pointed setae. The 
latter have close transverse rows of fine spines 
along the free length (Fig. 11c). Neuropodia, 
except in the eleventh setigerous segment, are 
provided with only composite hooks; they have 
a falcate appendage that terminates distally in 
a single strong tooth and a delicate sheath 
(Fig. 11 a)\ the appendage and shaft are not 
completely separated at the articulation. 
A. heterochaetus was known only through its 
original description, based on individuals from 
Bering and Japan seas, from sublittoral zones 
to 74 meters. The present records are from 
Canoe Bay, in 15 to 40 fm. 
Family ARENICOLIDAE 
Genus Arenicola Lamarck 
Arenicola pusilla Quatrefages 
Arenicola pusilla Quatrefages, 1865: 266; Ash¬ 
worth, 1912: 114-123, pi. 7, fig. 15, pi. 8, 
fig. 18, pi. 10, fig. 12-25, pi. 13, fig. 44, pi. 
14, fig. 49; Berkeley, 1932^: 315; Berkeley, 
1942: 198. 
Collections. Lazy Bay (25); head of Lazy 
Bay (1). 
This species has been reported from Alaskan 
waters; the present records are from south¬ 
western Alaska, intertidal. 
Family OPHELIIDAE 
Genus Armandia Filippi 
Armandia bioculata Hartman 
Armandia bioculata Hartman, 1938c: 105-106, 
fig. 51-54. 
Collections. Stations 47-40 (5); 51-40 (5). 
The body consists of 29 or 30 setigerous 
segments. Branchiae are present from the second 
segment to the penultimate (or rarely last) 
segment, numbering 28 (or 29) pairs. Thepros- 
tomium is broadly rounded anteriorly and termi¬ 
nates in a small palpode. Nuchal organs are 
more or less conspicuous, and partly everted in 
some individuals. Two dark eyespots, one above 
the other, are deeply embedded in the tissue of 
the prostomial lobe. 
Lateral eyespots are dark brown, present from 
segments 7/8 to 17/18 and number 11 pairs. 
They vary in size and shape among themselves; 
most are large and circular, others are mere 
specks, a few are somewhat oval. Branchiae 
are long and cirriform; the first and last pairs 
are smaller than the others. Parapodia are 
simple, rounded, with a tiny postsetal lamella in 
neuropodia. The pygidium terminates on its 
ventral side in a pair of longer cirri, and laterally 
in four or five similar, though smaller, cirri; a 
median unpaired filament projects for a longer 
or shorter distance from within the pygidial 
funnel. 
These indivdiuals are referred to A. bioculata 
largely because of the nature of pygidial struc¬ 
tures and the distribution of branchiae. A. brevis 
(Moore) (1906: 354), from Icy Cape, Alaska, 
differs in that the pygidium, which was presum¬ 
ably perfect, was described without terminal 
