Annotations on H. Boschma's work on Hydrocorals (Milleporina, Axoporina, Stylasterina), with additions to his list of the described species of Stylasterina

CONTENTS 1. Introduction.................. 3 2. Summaries of Boschma's publications on Hydrocorals....... 5 3. Boschma's new species of Hydrocorals........... 24 3.1. New species of Milleporina............. 24 3.2 New species of Axoporina............. 25 3.3. New species of Stylasterina............. 26 4. Additions to Boschma's list of the described species of Stylasterina . . . 31 5. Bibliography.................. 33 5.1. Boschma's publications on Hydrocorals.......... 33 5.2. Some publications by other authors specially referred to in the present paper 36 6. Index to the Stylasterina mentioned in Boschma's papers...... 37 I. INTRODUCTION An obituary note on Hilbrand Boschma (1893-1976), former director of the Rijksmuseum van Natuurlijke Historie at Leiden, has been published by Vervoort (1977), to which is annexed a complete bibliography of more than 300 titles. Previously a more detailed report on Boschma's research activities in various fields and of his scientific functions had been given by Van der Klaauw (1964) on the occasion of his seventieth anniversary. Investigation on Hydrocorals has been one of Boschma's main activities during the later part of his life. Between 1948 and 1970 Boschma published 70 papers dealing with the three orders of Hydrocorals: Milleporina, Axoporina and Stylasterina. Milleporina are dealt with in 15, Axoporina in 6, and Stylasterina in 54 papers. In the order Milleporina Boschma described two new species, Millepora