BRVOZOA OF THE PHILIPPINE REGION 447 



Genus ScuticeUa Levinsen, 1909 



Explanatory notes for fig. 179 



A-F. ScuticeUa rcittricoxn Husk, 1852. A. Zoarium, J^ natural size and general 

 aspect, frontal and dorsal of a branch. (After MacGillivray, 1888.) B. Termi- 

 nal gonozooecium, X40. C. The same gonozooecium, viewed laterally, X4(i. 

 D. A zooeeium, X40. E. A bizooceial internode, X40; 1, the suprascapular 

 chamber; 2. the scapular chamber; 3, the infrascapular chamber; 4, the pedal 

 chamber. F. A zooeeium lateral view. The scapular, infrascapular and pedal 

 chambers are seen. 



G— W. ScuticeUa plagiostoma Busk, 1S52. G. General aspect, frontal and 

 dorsal, of a branch. (After MacGillivray, 1888.) H. The lateral chambers are 

 furnished with their membraneous walls, X23. I. A bizooecial internode from 

 the basal surface. Between the two zooecia uppermost, the adzooecial supra- 

 scapular chambers of the mother zooeeium and lowermost its adzooecial pedal 

 chamber. The scapular and infrascapular chambers are united or incompletely 

 separated. X40. J. The zooeeium which arises from the mother zooeeium of the 

 bizooecial internode from the basal surface. The floor of the 2 suprascapular cham- 

 bers is seen uppermost wdiile the membranous cover is removed. The latter is 

 seen in figure II. The two suprascapular chambers are also shown, X40. K. A 

 part of the same zooeeium from the surface furnished with a small avicularium. 

 The infrascapular and the pedal chambers are seen; X40. L. The daughter 

 zooeeium of a bizooecial internode from the external surface. Uppermost the 

 unseparated distal chambers (the scapular and the infrascapular) and under 

 them the pedal chamber of the daughter zooeeium and the adzooecial pedal 

 chamber of the mother zooeeium; X30. M. The mother zooeeium of a bizooecial 

 internode. Uppermost the two unseparated chambers and under these the pedal 

 chamber; X40. N. The zooeeium which arises from a daughter zooeeium from 

 the interna] surface (that is, opposite an avicularium) (see fig. II). Uppermost 

 the distal unseparated chambers and below the pedal; X40. O. A part of the 

 same zooeeium with a large avicularium. The infrascapular chamber >>>u the 

 basal surface) is seen and also the pedal; to the left of the tip of the avicularium 

 the floor of the suprascapular chamber; X40. P. The same zooeeium from the 

 other surface. The corresponding chambers are seen; X40. Q. The separating 

 wall between the cover and kenozooecium and the small spinous basal chamber; 

 <40. H. A gonozooecium of the var. setifera, X 10. S. A gonozooecium of 

 the same form, lateral view; X40. T. The same from basal surface; Hi. 

 I'. A sagittal section through a zooeeium. The angularly bent distal wall (dw) 

 and the cryptocysl plate (r///) are seen, X 40. V. An old bizooecial internode of 

 the variety setifera. The aperture is closed by ;• calcified plate and this is further 

 connected with a cryptocyst which is placed inside of the sternal area and may 

 finally form a continuous cover inside t he last ; 10. W. Another old bizooecial 

 internode of the same form; X40. (B-F, II, W. After Levinsen, 190«>.- X. 

 Zooeeium showing terminology, avic, avicularium; C8., compensation sack; 

 /, membranous fenestra; inf. uric, infra-avicularian compartment; ,/. chitinous 

 joint; }il, calcareous plate; pm, parietal muscles; pin', distal group of parietal 

 muscles: sup. attic, supra-avicularian compartment; x, free edge of plate. Alter 

 Harmer, 1902.) 



