630 



VITAMINS D 



Table 2 

 The Distribution of Provitamins D in Various Invertebrates" 



Provitamin 



D, 



parts 



per 1000 



total 



sterol 



Source 



Systematic name 



Common name 



Porifera 



Cliona celata 

 Spheciospongia vesparia 

 Halichondria panicea 



Coelenterata (Cnidana) 

 Metridium dianthus 



Metridiuvi dianthus 



Actinia equina 



Urticina crassicornis 



Pennatiila (Leioptilns) quadran- 



gularis 

 Alcyonhim digitatum 

 Anemonia sulcata 

 Madreporaria 



Bryozoa 



Flustra securifrens 



Annelida 



Tubifex, spp. 

 Lumhricxis terrestris 

 Arenicola marina 

 Hirudo medicinalis 

 Nereis virens 



Arthropoda 



Tenebrio molitor 

 Melolontha vulgaris 

 Melolontha vulgaris 

 Chironomus, Fabr., spp. 

 Dytiscus marginalus 

 Carausius morosus 

 Aleurobius farinae 

 Eriocheir sinensis 



Blatta orientalis 

 Gastropacha pini 



Commercial sponges 20 



Boring sponge <10 



Loggerhead sponge, West Indies <10 



Green-brown "crumb of bread" 6 

 sponge 



Sea clove, snowy or red sea ane- 86 



mone 



Sea clove, snowy or red sea ane- 52 



mone 



Sea anemone, purple 50 



Sea anemone, variegated 45 



Sea pen 42 



Sea finger, pink 34 



Sea anemone, tentacled 17 



Commercial corals (true corals) 10 



Sea anemone (Australia) 9 



Sea anemone (unidentified) Trace 



Sea mat, straw-yellow 65 



