CEYLON PEARL OYSTER REPORT. 



Family : Chondrosiidse. 



74. Chondrilla nucula, Schmidt; fide Carter (5). 



Adriatic, Florida, Antilles, Azores (48); 



Red Sea (61). 

 H75. Chondrilla australiensis, Carter. Australia; 



Coast of Cochin China (86). 

 II 76. Chondrosia reniformis, Nardo. Adriatic; 



Aden (92); Amboyna (83). 



Sub-order : Sigmatomonaxonellida. 

 Family : Haploscleridse. 

 Sub-family : Gelliinse. 



H77. Gellius fibulatus (Schmidt). Adriatic; Euro- 

 pean coast of North Atlantic; Azores (62) ; 

 Australia (16) ; Ternate (87). 



II 78. Gellius <tit>ii<ltitus (Bowerbank). British seas 

 (52) ; Azores (1, 48, 62) ; Iceland (88). 



H 79. Gelliodes carnosa, Dendy. 



H80. ,, inarustans, n. sp. 



H81. ,, petrosioides, n. sp. 



H82. Tvxochalina robusta, Ridley. Port Jackson 

 (Australia). 



H 83. Strongylcphora durissima, n. gen. et sp. 



Sub-family : Renierinse. 



84. Reniera madrepora, Dendy (2). Java (86). 



D 85. Reniera albescens (= HaUchondria albescens, 

 Johnston), fide Carter (4). British seas 

 (81). 



H86. Reniera implexa, Schmidt. Adriatic (50); 

 Azores (1, 62). 



H 87. Reniera pigmentifem, n. sp. 



H 88. zoologka, n. sp. 



H89. Petrosia testudinaria (Lamarck). Queensland 

 (16) ; Mergui Archipelago (3) 



H 90. Petrosia similis, Ridley and Dendy. South 

 of Cape of Good Hope and between 

 Kerguelen and Heard Islands (1). 



II 91. Petrosia densissima, a. .sp. 



H 92. Halichondria panicea, Johnston. Cosmo- 

 politan (1). 



H 93. Trachyopsis halichoridrioides, n. gen. et sp. 



Sub- family : Chalininse. 



H 94. Pachychalina subcylindrica, n. sp. 

 II 95. delicatula, Dendy. 



H 96. brevispiculifera, n. sp. 



H 97. 



H 98. 



H 99, 

 H100 

 II 101. 

 H102. 

 H103. 

 H104. 



H105. 

 H106. 



PachychaUna spinilamella, Dendy. 

 ( 'halina subarmigera, Ridley. Torres Straits 

 (16); Port Jackson (51); Coast of Cochin 

 China (86). 



Chalina obtusispiculifera, n. sp. 

 ,, clathrata, n. sp. 

 ,, cymmformis (Esper?). 

 Ceraochalina retiarmata, n. sp. 

 ,, reticutis, n. sp. 



multiformis, Lendenfeld. Aus- 



tralia and New Zealand (51). 

 ( 'eraochalina ceylonica, n. sjj. 

 Siphonochalina communis (Carter). Port 

 Jackson (16) ; Kurrachee (16). 



Sub-family : Desmacellinse. 

 H 107. Desmacella tubulaia, n. sp. 



Sub-family : Tedaniinae. 



108. Tedania digitata, Schmidt, fide Dendy (2). 

 Cosmopolitan (1). 



Sub-family : Heteroxyinse. 

 H 109. Acanthomfer ceylonensis, n. gen. et sp. 



Family : Desmacidonidse. 

 Sub-family : Esperellinre. 



H110. Esperella pdrishii, Ridley. Port Darwin, 

 Australia (16). 



Hill. Esperella plumosa (Carter). Mauritius (33) ; 

 Mergui Archipelago (20). 



H 112. Esperella crassissima, n. sp. 



H113. ,, tenuispieulata, n. sp. 



D 1 1 4. Esperella tunicata (Schmidt), fide Carter (4). 

 Adriatic (47) ; Azores (62). 



H115. Paresperella serratohamata (Carter). Van- 

 couver, fide Lambe (85).* 



H116. Paresperella bidentata, n. sp. 



H 117. Iotrochota pmpurea (Bowerbank). Straits of 

 Malacca (49) ; North Australia (16) ; Am- 

 boyna (83); Amirante group (16); ? South 

 Coast of Australia (10) ; ? West Indies (53). 



H 118. Iotrochota baculifera, Ridley. Western Indian 

 Ocean (16) ; North Australia (16) ; Am- 

 boyna (83); Celebes (39); Ternate (87); 

 Coast of Cochin China (86). 



Lambe's identification is probably erroneous. 



