Annals of the South African Museum, Volume 17The Museum, 1920 - Natural history |
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Page 324
... subacute apex . Ventral surfaces of peraeon segments 1-7 and pleon segment 1 each with a long straight spiniform process . First antenna , 1st joint elongate , narrow , 2nd half length of 1st , 3rd very short , flagellum shorter than ...
... subacute apex . Ventral surfaces of peraeon segments 1-7 and pleon segment 1 each with a long straight spiniform process . First antenna , 1st joint elongate , narrow , 2nd half length of 1st , 3rd very short , flagellum shorter than ...
Page 329
... subacute . Mandibles normal , cutting - edges bifid , a strong secondary cutting- edge in left . Maxilla ( 1 ) , outer plate with 8-9 spines . Maxilliped , 2nd joint not very long , inner plate Contributions to the Crustacean Fauna of ...
... subacute . Mandibles normal , cutting - edges bifid , a strong secondary cutting- edge in left . Maxilla ( 1 ) , outer plate with 8-9 spines . Maxilliped , 2nd joint not very long , inner plate Contributions to the Crustacean Fauna of ...
Page 335
... subacute , inner margin gently convex , quite smooth ; tooth on outer margin very prominent , its front margin slightly denticulate . Maxilliped , 2nd joint produced on inner distal angle , 4th joint of palp not incurved . Peraeopod 1 ...
... subacute , inner margin gently convex , quite smooth ; tooth on outer margin very prominent , its front margin slightly denticulate . Maxilliped , 2nd joint produced on inner distal angle , 4th joint of palp not incurved . Peraeopod 1 ...
Page 336
... subacute , with 2 setae . Larva 1. - 4 mm . x 75 mm . Head triangular , broader at base than long , lateral margin straight , antero - lateral angles excavated for the insertion of the antennae , front margin truncate between the ...
... subacute , with 2 setae . Larva 1. - 4 mm . x 75 mm . Head triangular , broader at base than long , lateral margin straight , antero - lateral angles excavated for the insertion of the antennae , front margin truncate between the ...
Page 338
... , outer ramus not very widely separated from its fellow , ovate , outer distal margin slightly concave , apex subacute , margin fringed with long setae . Length : 10.5 mm .; breadth , 1 mm . 338 Annals of the South African Museum .
... , outer ramus not very widely separated from its fellow , ovate , outer distal margin slightly concave , apex subacute , margin fringed with long setae . Length : 10.5 mm .; breadth , 1 mm . 338 Annals of the South African Museum .
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Common terms and phrases
1st joint 1st leg 2nd joint 3-jointed 3rd joint 5th joint abdomen acute Allothele Antenna anteriorly antero-lateral angles apically Arcturella breadth bristles broader than long Cape Point carapace cephalic portion Chelicera Colour convex coxae Crust Cymodoce dark denticles diameter distal margin distant distinct dorsal surface Dresserus fathoms flagellum genus groove hairs head Hersiliola infuscated inner margin inner ramus keel lateral length little longer lobes longer than broad Maxilliped metatarsus metatarsus and tarsus narrow ocular outer margin outer ramus ovate ovigerous pairs palp patella pedipalps peduncle peraeon segment peraeopods pleon segment Pleopod plumose setae posterior margin posterior median posteriorly R. W. Tucker rami Rhaeboctesis rounded S.A. Mus s.s. Pieter Faure Sars segments 1-4 setose short shorter Side-plates slender slightly species specimens spines spinners spinules Stebb Stebbing sternum stout stylet subacute subequal tapering telson testaceous Thelechoris tibia tooth transverse tubercles U.S. Nat Uropod Vulva width
Popular passages
Page 380 - But within the tribe the two main families are sharply divided by the fact that the processes are separate in the Idoteidae * and united into a single process in the Astacillidae.