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科 Dromiidae - sponge crabs
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目 |
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綱 |
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Malacostraca |
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No. of Genera in Ref. |
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No. of Species in Ref. |
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126 |
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環境 |
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淡水 : No |
半鹹淡水 : No |
海洋 : Yes |
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水族館 |
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最早的化石記錄 |
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參考文獻. De Grave, S., N. Dean Pentcheff, S.T. Ahyong, T.-Y. Chan, K.A. Crandall, P.C. Dworschak, D.L. Felder, R.M. Feldmann, C.H.J.M. Fransen, L.Y.D. Goulding, R. Lemaitre, M.E.Y. Low, J.W. Martin, P.K.L. Ng, C.E. Schweitzer and S.H. … Tan 2009 | ||
附註 |
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Carapace circular to hexagonal; dorsal surface gently to strongly convex longitudinally and transversely, smooth or granular, usually setose; front narrow, usually entire; anterolateral margins of carapace strongly convex, unarmed, or with small spines. Last 2 pairs of legs inserted obliquely on carapace and directed upwards, strongly reduced, subchelate, modified to carry sponges or tunicates on back of carapace. All males abdominal segments distinct, movable; a small platelet-like structure usually intercalated between edges of sixth abdominal segment and telson. Male first gonopod stout, simple; male second gonopod long, usually subequal or longer than length of male first gonopod. Male and female genital openings sternal (Ref. 343). |
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