ANOPHRYOCEPHALUS INUITORUM SP-NOV AND A-ARCTICENSIS SP-NOV (EUCESTODA, TETRABOTHRIIDAE) IN RINGED SEALS (PHOCA-HISPIDA HISPIDA) AND HARP SEALS (PHOCA-GROENLANDICA) FROM HIGH-LATITUDE SEAS OF EASTERN CANADA ANDTHE ARCTIC BASIN
Ep. Hoberg et Ln. Measures, ANOPHRYOCEPHALUS INUITORUM SP-NOV AND A-ARCTICENSIS SP-NOV (EUCESTODA, TETRABOTHRIIDAE) IN RINGED SEALS (PHOCA-HISPIDA HISPIDA) AND HARP SEALS (PHOCA-GROENLANDICA) FROM HIGH-LATITUDE SEAS OF EASTERN CANADA ANDTHE ARCTIC BASIN, Canadian journal of zoology, 73(1), 1995, pp. 34-44
Anophryocephalus inuitorum sp.nov. and A. arcticensis sp.nov. are desc
ribed from ringed seals (Phoca hispida hispida) in the eastern Canadia
n Arctic: the latter species is also reported from harp seals (Phoca g
roenlandica) in the Gulf of St. Lawrence. Anophryocephalus inuitorum i
s most similar to A. skrjabini, but can be distinguished by fewer test
es (14-27) and smaller dimensions of the strobila, neck (3.0-5.9 mm lo
ng), and cirrus sac (31-70 mu m long), diameter of the genital atrium
(44-68 mu m), and length of the male canal (23-42 mu m long). Anophryo
cephalus arcticensis resembles A. nunivakensis in the structure of the
scolex, but is readily distinguished by a longer neck (8.9-14.7 mm),
an elongate cirrus sac (60-98 x 44-73 mu m) with a substantially thick
er muscular wall, a more globular vitelline gland, and larger embryoph
ores (29-41 mu m long) and oncospheres (24-34 mu m long). These are th
e first species of Anophryocephalus to be described from phocines in t
he eastern Canadian Arctic, and are included in a revised key for the
genus.