56 



Siphonium gigas Chem. Man. p. 320 fig. 2304. 

 Serpula gigantea Turt. Cat. 1786 p. 6 No. 47. 



T. adulta, elongata, tubulosa, recta vel subflexuosa, e partibus lateralibus septorum 

 concreta, inde concentrice lamellosa et stratificata, crassa, extus transversim striata et sub- 

 annulatim rugosa et aspera, saepius subtuberculosa et inaequalis, intus laevissima, nitida 

 (testa junior ad basin infimum attenuata et spiraliter torta) septa transversa, remota, im- 

 perforata, tenuissima, tubuloso-hemisphaerica, cupuliformiis, se invicem amplectentia, (supe- 

 riora inferioribus incumbentia) partes laterales in testam concretae, basis septorum libere 

 prominulo, clausa hemispherica, papyraceo-tenuissima, fragilis, rarius hemispherico-conica et 

 subobliqua, habitus orthoceratidoides, sed sipho nulluni. 



Diam. test. 8—14" cras. testae 3 / 4 ". 



Patria: Java. 



var. 3. scandens Mörch. Proc. 1861 p. 167. 



T. contorta, inter ramos heteroporae scandens, anfr. teretiusculi, superne et inferue 

 subplanati, rugis transversis latis obsoletis arcuatis, varicibus crassis praecipitibus 1 — 2 ; Striae 

 incrementi membranaceae, confertae, saepe ferrugineae, apertura circularis, intus Candida, 

 peritrema intus corneum. 



Diam. 21 mm. 



Operculum pellucidum, castaneum, superne profunde concavum, area centrali opaca, 

 peripheria elevata, limbo laevissimo, margine angusto, flavo; inferne elevato-concexum ; im- 

 pressio muscularis rotundata, acumiuata, concentrice interrupte rugulosa; limbus planissimus r 

 latus, nitidus; margine canali piano, angusto terminato. 



Diam. 18,5 mm. 



Patria: Lord "Woods. Isl. 



var. 4. Operculo megacentro Mörch. Proc. 1861 p. 168. 



Operculum inferne convexum, (nee elevato-convexum) limbo convexiusculo prominulo 

 angusto; impressio muscularis magna, subtiliter concentrice striata. 

 Diam. 17^3 mm, lat. limbi 4 mm, alt. apert. 5 mm. 



Patria: Lord Woods. Isl. 



var. 5. biangularis Mörch. Proc. 1861 p. 168. 



Kerang su rumbang var. Junghuhn Java fig. 3. 

 T. repens, corrodens, semiimersa, aperturam versus lente crescens, utrinque obtuse 

 angulata, lateribus planatis, superne planiuscula vel leviter coneava, varicibus arcuatis prae— 



