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Comprehensive Description

provided by Smithsonian Contributions to Zoology
Achelia megova (Hilton)

Ammothea megova Hilton, 1942g:95–96.

MATERIAL EXAMINED.—Alaska, Port Etcher, coll. W.H. Dall, sta 669 (1140), 22–33 m, 1874 (1, holotype, USNM 81492); Aleutians, Amchitka Island, Constantine Harbor, coll. W.H. Dall, sta 305 (1049), 5 Aug 1873 (7 with eggs, 1, 3 juv, non-types).

DISTRIBUTION.—Known from Amchitka Island in an unknown but shallow depth, and “Port Etcher” (probably Port Etches, Prince William Sound, Gulf of Alaska, 60°20′N, 146°37′W), in 22 to 33 m. The species apparently has not been taken since these specimens were reported by Hilton. He listed another male from Attu Island that is actually a specimen of A. alaskensis.

DESCRIPTION.—Species fairly small, leg span about 11 mm. Trunk oval in dorsal view, lateral processes closely crowded except distally, armed, as cephalic segment anterior and dorsal abdomen, with field of short dorsodistal spines each on raised button tubercle. Ocular tubercle very low, wider at base than tall, eyes prominent. Proboscis egg-shaped, quite inflated. Abdomen moderately long, extending to tip of first coxae, fourth leg pair.

Palp segments short, with many lateral and dorsal spines, none longer than segment diameters, distal 5 segments with many short ventral setae. Chelifores small, slender, scape armed with few short lateral and distal setae, chelae bulbous, with single seta each.

Legs moderately slender, very spinose with only few spines longer than their segment diameters. First coxae with lateral line of short spines and dorsodistal group of spines on low button tubercles. Second coxae of posterior 4 legs with short ventrodistal sexual spur. Cement gland pore very tiny, on low rounded dorsodistal tubercle on femur. Propodus robust, slightly curved, with 3 heel spines, 8–9 short sole spines, and rows of lateral and dorsal spines. Claw robust, fairly short, auxiliary claws little more than half main claw length.

MEASUREMENTS (in mm).—Trunk length (chelifore insertion to tip 4th lateral processes), 1.56; trunk width (across 2nd lateral processes), 1.36; proboscis length (ventral), 1.26; abdomen length, 0.7; third leg, coxa 1, 0.44; coxa 2, 0.51; coxa 3, 0.4; femur, 0.88; tibia 1, 0.78; tibia 2, 0.79; tarsus, 0.18; propodus, 0.6; claw, 0.28.
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bibliographic citation
Child, C. Allan. 1995. "Pycnogonida of the Western Pacific Islands, XI: Collections from the Aleutians and other Bering Sea Islands, Alaska." Smithsonian Contributions to Zoology. 1-29. https://doi.org/10.5479/si.00810282.569

Achelia megova ( Dutch; Flemish )

provided by wikipedia NL

Achelia megova is een zeespin uit de familie Ammotheidae. De soort behoort tot het geslacht Achelia. Achelia megova werd in 1943 voor het eerst wetenschappelijk beschreven door Hilton.

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13-12-2011
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Achelia megova ( Vietnamese )

provided by wikipedia VI

Achelia megova là một loài nhện biển trong họ Ammotheidae. Loài này thuộc chi Achelia. Achelia megova được miêu tả khoa học năm 1943 bởi Hilton.

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Hình tượng sơ khai Bài viết về Lớp nhện biển (Pycnogonida) này vẫn còn sơ khai. Bạn có thể giúp Wikipedia bằng cách mở rộng nội dung để bài được hoàn chỉnh hơn.
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Achelia megova: Brief Summary ( Vietnamese )

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Achelia megova là một loài nhện biển trong họ Ammotheidae. Loài này thuộc chi Achelia. Achelia megova được miêu tả khoa học năm 1943 bởi Hilton.

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Habitat

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shelf

Reference

van der Land, J. (ed). (2008). UNESCO-IOC Register of Marine Organisms (URMO).

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Jacob van der Land [email]