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404 results for “1944”
FIGURE 2. A–D in A new genus for Libinia rostrata Bell, 1835, with comments on the validity of Libinia bellicosa Oliveira, 1944 (Crustacea, Brachyura, Majoidea, Epialtidae)
FIGURE 2. A–D, Abdominal view of first male gonopod. A, C, Stratiolibinia bellicosa (Oliveira, 1944) gen. nov., comb. nov., male cl 62 mm, cw 52 mm (MZUSP 22536). B, Stratiolibinia rostrata (Bell, 1835) gen. nov., comb. nov., male cl 55 mm, cw 48 mm (USNM 70999). D, Libinia spinosa H. Milne Edwards, 1834, male cl 62 mm, cw 53 mm (MZUSP 20271). Note G1 keel (k) in A–C (absent in D) and long, acute, upturned mesial lobe (ml) in A (lobe distinctly shorter, blunt, directed laterally in B). Scale bars: A, D, 0.50 mm; B, C, 0.33 mm.
FIGURE 4. A– B in A new genus for Libinia rostrata Bell, 1835, with comments on the validity of Libinia bellicosa Oliveira, 1944 (Crustacea, Brachyura, Majoidea, Epialtidae)
FIGURE 4. A– B, Habitus, dorsal view. A, Stratiolibinia bellicosa (Oliveira, 1944) gen. nov., comb. nov., holotype female cl 72.9mm, cw 63.7mm (MZUSP 8581). B, Stratiolibinia rostrata (Bell, 1835) gen. nov., comb. nov., male cl 55 mm, cw 48 mm (USNM 70999). C, Libinia spinosa H. Milne Edwards, 1834, male cl 62 mm, cw 53 mm (MZUSP 20271). D, Libinia ferreirae Brito-Capello, 1871, male cl 56 mm, cw 50 mm (MZUSP 379). Note in A, B P1 merus armed with spines and tubercles (merus unarmed in C, D), the very broad rostrum (distinctly smaller, merely notched distally in C, D), in A, only distinct double tubercle behind cardiac spine (arrow). Scale bars: A, 38 mm; B, 28 mm; C–D, 30 mm.
FIGURE 1. A–D in A new genus for Libinia rostrata Bell, 1835, with comments on the validity of Libinia bellicosa Oliveira, 1944 (Crustacea, Brachyura, Majoidea, Epialtidae)
FIGURE 1. A–D, Ventral view of thoracic sternum (abdomen in place in B and D, removed in A and C). A, B, Stratiolibinia bellicosa (Oliveira, 1944) gen. nov., comb. nov., male cl 62 mm, cw 52 mm (MZUSP 22536). C, D, Libinia spinosa H. Milne Edwards, 1834, male cl 62 mm, cw 53 mm (MZUSP 20271). Note in D, lateral swellings (arrows) at level of thoracic sternites VI–VII and abdominal somites 5 and 4 deeply concave laterally. Scale bars: A–D, 15 mm.
FIGURE 3. A, B, right P2 in A new genus for Libinia rostrata Bell, 1835, with comments on the validity of Libinia bellicosa Oliveira, 1944 (Crustacea, Brachyura, Majoidea, Epialtidae)
FIGURE 3. A, B, right P2 carpus, propodus, and dactylus. C, D, corneous distal end of left P2 in ventral view. A, C, Stratiolibinia bellicosa (Oliveira, 1944) gen. nov., comb. nov., male cl 74 mm, cw 64 mm (MZUSP 20288). B, D, Libinia spinosa H. Milne Edwards, 1834, male cl 62 mm, cw 53 mm (MZUSP 20271). Note P2 dactylus much shorter than P2 propodus in A (about as long as propodus in B), distinct, ventral tubercle (arrow) behind corneous tip in C (absent in D), and corneous tip deeply excavated in C (gently grooved in D). Scale bars: A–B, 15 mm; C, 0.5 mm; D, 2 mm.
FIGURE 16 in Two new species of Colubotelson Nicholls, 1944 in Tasmania's Lake Pedder: persistence of Phreatoicidae (Crustacea, Isopoda) in therein
FIGURE 16. Colubotelson pedderensis sp. nov. Paratype male (QVM:10:51202), pleopods, light micrographs in ventral view: A, I; B–D, II with SEM enlargements of appendix masculina and distal tip; E, III with enlargement of setae on exopod distal article; F–G, IV–V. Scale bar 1.0 mm.
FIGURE 15 in Two new species of Colubotelson Nicholls, 1944 in Tasmania's Lake Pedder: persistence of Phreatoicidae (Crustacea, Isopoda) in therein
FIGURE 15. Colubotelson pedderensis sp. nov. Paratype male (QVM:10:51202), mouthparts. A–D, maxillula: ventral view, enlargement of lateral and medial lobe, lateral lobe, medial view. E–F, maxilla: medial and ventral views. G–I, maxilliped: ventral view, medial view of endite, enlargement of endite distal tip setae. Scale bars 0.5 mm.
FIGURE 14 in Two new species of Colubotelson Nicholls, 1944 in Tasmania's Lake Pedder: persistence of Phreatoicidae (Crustacea, Isopoda) in therein
FIGURE 14. Colubotelson pedderensis sp. nov. Paratype male (QVM:10:51202), anterior mouthparts. A, labrum, anterior view, small globular objects are epizoic peritrichs. Scale bar 1 mm. B–D, left mandible medial view, palp distal articles with enlargement of setae (scale bar 0.05 mm), and ventral view of distal gnathal margin. E–F, right mandible, dorsal view and medial view of incisor and spine row. A, B, E scale bars 0.5 mm.
FIGURE 13 in Two new species of Colubotelson Nicholls, 1944 in Tasmania's Lake Pedder: persistence of Phreatoicidae (Crustacea, Isopoda) in therein
FIGURE 13. Colubotelson pedderensis sp. nov. Paratype male (QVM:10:51202). A–B, pereopod V, lateral view, with enlargement of dactylus and propodus, medial view. C, pereopod VII, segments distal to merus lost, lateral view. D, penes, posterior view. E, antennula, in situ, with enlargement of distal tip. F, antenna, in situ, with enlargement of distal tip. Scale bars: A, C, F 1.0 mm; D, E 0.5 mm.
FIGURE 12 in Two new species of Colubotelson Nicholls, 1944 in Tasmania's Lake Pedder: persistence of Phreatoicidae (Crustacea, Isopoda) in therein
FIGURE 12. Colubotelson pedderensis sp. nov. Paratype male (QVM:10:51202), pereopods. A–D, pereopod I, lateral view, with enlargements of dactylus and palm, and setation of palm, lateral and medial views. E–F, pereopod II, lateral view, with enlargement of dactylus, propodus and carpus. G–H, pereopod IV, lateral view, with enlargement of dactylus, propodus and carpus. Small globular objects are epizoic peritrichs. Scale bars 1.0 mm.
FIGURE 18 in Two new species of Colubotelson Nicholls, 1944 in Tasmania's Lake Pedder: persistence of Phreatoicidae (Crustacea, Isopoda) in therein
FIGURE 18. Colubotelson pedderensis sp. nov. Paratype female (QVM:10:51203). A–B, pereopod I, with enlargement of palm. C, pereopod II, lateral view. D, pereopod VII, lateral view. E–H, pleotelson: lateral view, uropod, dorsal view, posterior margin. Scale bars 1 mm.
FIGURE 10 in Two new species of Colubotelson Nicholls, 1944 in Tasmania's Lake Pedder: persistence of Phreatoicidae (Crustacea, Isopoda) in therein
FIGURE 10. Colubotelson pedderensis sp. nov. Lateral views, with enlargements of anterior and posterior parts of the body. A–C, holotype male (QVM:10:51201). E–F, paratype male (QVM:10:51204). Scale bars 5.0 mm.
FIGURE 11 in Two new species of Colubotelson Nicholls, 1944 in Tasmania's Lake Pedder: persistence of Phreatoicidae (Crustacea, Isopoda) in therein
FIGURE 11. Colubotelson pedderensis sp. nov. Paratype male (QVM:10:51202), pleotelson and uropods. A, right lateral view. B, posterior margin and apex, lateral view. C, dorsal view. D, posterior apex and posterolateral lobes, dorsal view. E, ventral margin anterior to uropods, distally denticulate robust setae. F, medial view of ventral margin, showing group of medial group of small distally denticulate robust setae. G, posterior margin of pleotelson, ventral view. H, distal group of robust setae on ventral margin of uropodal protopod. I, left uropod, lateral view. Small globular objects are epizoic peritrichs. Scale bar 1.0 mm.
FIGURE 17 in Two new species of Colubotelson Nicholls, 1944 in Tasmania's Lake Pedder: persistence of Phreatoicidae (Crustacea, Isopoda) in therein
FIGURE 17. Colubotelson pedderensis sp. nov. Paratype female (QVM:10:51203), head. A, lateral view. B, dorsal view. C–D, antennula with enlargement of distal tip. E–F, mandibular palp with enlargement of denticulate seta on palp article 3. G, ventral view. Scale bar 1 mm.
FIGURE 9 in Two new species of Colubotelson Nicholls, 1944 in Tasmania's Lake Pedder: persistence of Phreatoicidae (Crustacea, Isopoda) in therein
FIGURE 9. Colubotelson edgarensis sp. nov. Paratype female, (QVM:10:51199), pereopods (A–D) and pleotelson (E–I). A, C, pereopod II, lateral view. B, D, pereopod IV, lateral view. E, right lateral view. F, uropod, lateral view. G, ventral margin anterior to uropods, medial view, showing posterior group of 3 distally denticulate setae. H–I, posterior margin and apex, lateral and dorsal views. Scale bars 1.0 mm.
FIGURE 5 in Two new species of Colubotelson Nicholls, 1944 in Tasmania's Lake Pedder: persistence of Phreatoicidae (Crustacea, Isopoda) in therein
FIGURE 5. Colubotelson edgarensis sp. nov. Paratype male (QVM:10:51198), mouthparts. A–D, left mandible. A, dorsal view. B, lacinia and spine row. C, medial view. E, right mandible, gnathal margin, dorsal view. F, paragnaths, ventral view. G–I, maxillula, ventral view, enlargement of gnathal margin, and medial view of lateral lobe. Scale bars 0.2 mm.
FIGURE 4 in Two new species of Colubotelson Nicholls, 1944 in Tasmania's Lake Pedder: persistence of Phreatoicidae (Crustacea, Isopoda) in therein
FIGURE 4. Colubotelson edgarensis sp. nov. Paratype male (QVM:10:51198), pereopods. A, C, D, pereopod I, lateral view, with enlargements of dactylus and palm, and setation of palm. B, pereopod II, lateral view. E–F, pereopod IV, lateral view, with enlargement of dactylus, propodus and carpus. G, pereopod V, lateral view. H, pereopod VII, medial view. I, penes, posterior view. Scale bars 1.0 mm.
FIGURE 2 in Two new species of Colubotelson Nicholls, 1944 in Tasmania's Lake Pedder: persistence of Phreatoicidae (Crustacea, Isopoda) in therein
FIGURE 2. Colubotelson edgarensis sp. nov. A–C, holotype male (QVM:10:51197), left lateral view, with enlargements of head and pleotelson. D, paratype male (QVM:10:51200), right lateral view, SEM. Scale bar 1.0 mm.
FIGURE 3 in Two new species of Colubotelson Nicholls, 1944 in Tasmania's Lake Pedder: persistence of Phreatoicidae (Crustacea, Isopoda) in therein
FIGURE 3. Colubotelson edgarensis sp. nov. Paratype male (QVM:10:51198), pleotelson and uropods. A, right lateral view. B, posterior margin and apex, lateral view. C, dorsal view. D, posterior apex and posterolateral lobes, dorsal view. E, right uropod, lateral view. F, ventral margin anterior to uropods, distally denticulate robust setae. G, medial view of ventral margin, showing group of medial group of small distally denticulate robust setae. H, posterior margin of pleotelson, ventral view. I, distal group of robust setae on ventral margin of uropodal protopod. Scale bar 1.0 mm.
FIGURE 7 in Two new species of Colubotelson Nicholls, 1944 in Tasmania's Lake Pedder: persistence of Phreatoicidae (Crustacea, Isopoda) in therein
FIGURE 7. Colubotelson edgarensis sp. nov. Paratype male (QVM:10:51198), pleopods. A, B, E, F, pleopods I–IV, ventral view, scale bars 0.5 mm. C–D, pleopod II appendix masculina dorsal view with enlargement of distal tip, scale bar 0.2 mm.
FIGURE 1 in Two new species of Colubotelson Nicholls, 1944 in Tasmania's Lake Pedder: persistence of Phreatoicidae (Crustacea, Isopoda) in therein
FIGURE 1. Map of the current extent of Lake Edgar, with original outlines of Lake Pedder and Lake Edgar. Inset shows position of map in Tasmania.
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