Annals of the South African Museum, Volume 90The Museum, 1982 - Natural history |
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Page 289
... tubercles . These give rise to a pair of straight or feebly concave ribs that link to strong oblique ventral clavi twice as numerous as the lateral tubercles . These in turn give rise to weaker , broad prorsiradiate ribs that form a ...
... tubercles . These give rise to a pair of straight or feebly concave ribs that link to strong oblique ventral clavi twice as numerous as the lateral tubercles . These in turn give rise to weaker , broad prorsiradiate ribs that form a ...
Page 317
... tubercles , loss of ventral tuberculation and entire , rather than nodate , siphonal keel readily distinguish this species from Yabeiceras transiens sp . nov . , described above . Y. crassiornatum sp . nov . , described below , is more ...
... tubercles , loss of ventral tuberculation and entire , rather than nodate , siphonal keel readily distinguish this species from Yabeiceras transiens sp . nov . , described above . Y. crassiornatum sp . nov . , described below , is more ...
Page 319
... tubercles that migrate progressively outward from an umbilico- lateral to lower lateral position . At the smallest diameter visible , the beginning of the outer whorl , these tubercles give rise to broad , coarse , single ribs that ...
... tubercles that migrate progressively outward from an umbilico- lateral to lower lateral position . At the smallest diameter visible , the beginning of the outer whorl , these tubercles give rise to broad , coarse , single ribs that ...
Contents
figures and 1 table | 2 |
Systematic discussion | 41 |
Synopsis of the Afrotropical genera of Philosciidae | 47 |
Copyright | |
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Common terms and phrases
age classes age profiles Agulhas Bank Antenna Antennular Antennule Apanthura apex attritional b/c and d/c Barnard basal bipunctatum body chamber Budde-Lund Cape Town capensis carpus cephalon Chrysomya coiling Collignon Coniacian croceipalpis crown height Crustacea d/c co-ordinates Damalacra Diagnosis diameter DIEGO distal dorsal view Elandsfontein endite endopod endopodite Exiteloceras False Bay female Figure flagellum Forresteria Forresteria fossil genera genus Haliophasma hirsuta Hoepen Holotype individuals Isopoda Kensley Langebaanweg lateral tubercles Leptanthura lifespan lobe Malacanthura male Mandible margin Maxilliped mid-dorsal mortality profiles Nahia Natal Natalscia Neancyloceras noduli laterales non-ovig Nyanzachoerus outer ovig paratypes Pelorovis pereon segment pereonites Pereopods 4-7 Philoscia Pleon Pleopod Pleopod 1 exopodite population posterior propodal palm Raphicerus ribs rounded Saldanha Bay samples Schlüter setae Setaphora South African Museum specimens spines spiracles Taiti & Ferrara Telson Transkei triangular Type material Holotype type species ungulate Uropodal Uropodal exopod ventral whorl Yabeiceras Zululand