752 



BULLETIN 106, UNITED STATES NATIONAL MUSEUM. 



Family TUBULIPORIDAE Johnston, 1838. 



Anatomical bibliography. 1838. MILNE-EDWARDS, Mgmoire sur les Polypes du genre des 

 Tubulipores, Annales des sciences naturelle, ser. 2, vol. 8, p. 3, pi. 12. 1877. BARROIS, 

 Recherches sur 1'embryologie des Bryozoaires, Travaux de 1'Institut de Zoologie, fasc. 1, 

 pi. 3, fig. 20. 1898. HAEMER, On the development of Tubulipora, Quarterly Journal Micro- 

 scopical Science, vol. 41, pp. 73-117, pis. S, 9, 10. 1S8S. WATERS, On some Ovicells of 

 Cyclostomatous Bryozoa, Journal Linnean Society, London, vol. 20, p. 275, pi. 14, figs. 2, 5, 

 6, 8. 1914. WATERS, Bryozoa from Zanzibar, Proceedings of the Zoological Society, London, 

 pp. 835, 846, pi. 2, figs. C, 7, 8, 10. 1865. SMITT, Om Hafs bryozoernas utveckling och fett- 

 kropper, Oversight Kongl. Vetenskaps Akademiens. Forhandluugen, p. 20, pi. 4, figs. 9-14. 



The ovicell is irregular and located on the zoarium. The oeciopore is sub- 

 central. The tubes are very salient at their proximal extremity ; they are isolated 

 or fasciculate. 



In studying the anatomy of Tubulipora organisans D'Orbigny, 1839, 

 Jullien 1 wrote : 



J'ai vu que 1'ovicelle constituait une vraie gnesie femelle depourvue de polypide, contennnt 

 une tres grande quantite d'ovules qui y sout fecondees et en sortent a l'tat de larves deja 

 tres developpees. 



The limits of this family have never been very precise ; all of the old authors 

 understood it in a different sense, adding or eliminating genera according to their 

 personal opinion. The zoarial form and the mode of aggregation of the tubes 

 were the only characters studied. A discussion of priority is therefore useless, 

 since we now regard the ovicell as the essential and most important character. 



In the establishment of the new genera we must consider the form and posi- 

 tion of the oeciopore, which is in rapport with the function of the escape of the 

 larva. Unfortunately, very often sufficient material for a complete study is lack- 

 ing. As in the Cheilostomata, we must also regard the function of calcification. 



We consider the genus Tubulipora Lamarck, 1816, as quite a natural one and 

 we accept the word " Tubuliporidae " for the family, although the genus Idmonea 

 is the more important in time and in space. 



Classification of ncnora. 



" pores " which are the orifices 



Many of the Tubuliporidae are provided with 

 of the special tubes of whose function we are absolutely ignorant. We give 

 them different names according to the case and to their nature, but we can consider 

 them only as variations determined by the function of calcification. They appear 

 to furnish secondary generic characters and nothing more. 



1 1888. Mission scientifique du Cap Horn, p. 82. 



