BRYOZOA OF THE PHILIPPINE REGION 



451 



Fig. 1 S3. — Genus Calpidium Busk 1852 



A— H. Calpidium ornatum Busk, 1852. A. General asped of a ramifying branch, 

 Datura! size and enlarged. (After MacGillivray, 1888.) B. Trizooecial internode, 

 X23. C. Trizooecial internode from the basal surface, X23. D. Trizooecial 

 internode from the distal end, 23. E. Lateral vie\i of a trizooecial internode, 

 X23. I, suprascapular chamber; II. scapular chamber; III, infrascapular; IV, 

 pedal chamber. F. Bizooecial internode from the basal surface, X23. G. Bizoo- 

 ecial internode from the distal end, X23. H. Operculum, X85. 



I— P. ('nip/ilium ponderosum Goldstein. I. The internal cryptocyst plate is 

 seen and a strong crypt ocy si formation in the five fenestrae, X55. J. Lateral 

 view of a zooecium. The suprascapular, infrascapular, and pedal chambers seen, 

 X40. K. A bizooecial internode from the basal surface. The uppermost tri- 

 angular cavity is the adzooecial suprascapular chamber of the mother zooecium. 

 To the lefl is seen a suprascapular and infrascapular and a pedal chamber; to the 

 right the pedal is on the other hand not visible; the infrascapular is on this side 

 divided into two, X40. L. A bizooecial internode from the distal end, X23. 

 M. A terminal gonozooecium, X23. N. The same from the basal surface, X23. 

 (). The same, lateral view, X23. P. A sagittal section through a gonozooecium. 

 The covering kenozooecium and the distal wall transformed into an ovicell arc 

 seen l'3 (B ()}. (After Leviiiscm, 1900.) 



