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Family Colossendeidae
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Order |
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Class |
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Pycnogonida |
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No. of Genera in Ref. |
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No. of Species in Ref. |
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Environment |
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Fresh : No |
Brackish : No |
Marine : Yes |
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Aquarium |
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First Fossil Record |
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Remark |
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Trunk: usually little outward visible segmentation. Palps: with 8/9 segments always as long as or longer than proboscis in adults. Proboscis: large compared with trunk, between 3/4 - 2x length of trunk. Ovigers: present in both sexes, with 10 segments; 4 terminal segments of palp with patches of spines on ventral surfaces. Spines: frequently smaller on ovigers of female; shape of spines fall into 4 main categories: peg, needle, spatulate and molariform (Ref. 18). Legs: 4-6 pairs, extremely long and thin, 5-16x longer than trunk, no accessory claws. Tarsus: straight, cylindrical, length subequal to propodus. Chelifores: strongly chelate in juveniles; with 2 segmented scape; deciduous in adult stage. Genital pores: on ventral surface of 2nd coxae of all legs; male smaller with low protuberance whilst; female larger without protuberance. Reproduction and life history: unknown; few juveniles have been described; no male carry eggs or develop larvae. |
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Etymology |
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Division |
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Marine |
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Reproductive guild |
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Typical activity level |
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Main Ref. |
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Coordinator |
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