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 299
... tubercles that increase rapidly in strength as size increases . At the smallest diameter visible these tubercles give rise to pairs of strong prorsiradi- ate ribs that terminate in oblique ventral clavi . A shallow depression separates ...
... tubercles that increase rapidly in strength as size increases . At the smallest diameter visible these tubercles give rise to pairs of strong prorsiradi- ate ribs that terminate in oblique ventral clavi . A shallow depression separates ...
Page 313
... tubercles exposed within the umbilicus . The whorl section is depressed ( breadth to height ratio is 1,61 intercostally , 1,78 at the tubercles ) , with the greatest breadth low on the flank between the ribs and at the strong tubercles ...
... tubercles exposed within the umbilicus . The whorl section is depressed ( breadth to height ratio is 1,61 intercostally , 1,78 at the tubercles ) , with the greatest breadth low on the flank between the ribs and at the strong tubercles ...
Contents
Systematic discussion | 41 |
Synopsis of the Afrotropical genera of Philosciidae | 47 |
INTRODUCTION | 51 |
Copyright | |
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Common terms and phrases
age classes age profiles Agulhas Bank alluaudi Boule Antenna Antennular Antennule Apanthura apex attritional Barnard Barroisiceras bipunctatum body chamber breadth Budde-Lund Cape Town capensis carpus cephalon coiling Collignon Coniacian croceipalpis crown height d/c co-ordinates Diagnosis diameter distal dorsal view Elandsfontein endite endopod endopodite Exiteloceras False Bay female Figure flagellum Forresteria Forresteria fossil genus Haliophasma Hoepen holotype individuals inner whorls Isopoda Kensley Langebaanweg lateral tubercles Lemoine & Thévenin lifespan lobe Malacanthura male Mandible margin Matsumoto Maxilliped mid-dorsal mortality profiles Nahia Natal Natalscia Neancyloceras noduli laterales non-ovig Nyanzachoerus ovig palp paratypes pereon segment pereonites Pereopods 4-7 Philoscia Pleon Pleonites Pleopod Pleopod 1 exopodite population posterior propodus Raphicerus Reeside ribs rounded Saldanha Bay samples Schlüter setae Setaphora siphonal clavi South African Museum specimens spines spiracles Taiti & Ferrara Telson text-fig Transkei Type material Holotype type species ungulate Uropodal Uropodal exopod ventral ventrolateral Yabeiceras Zululand