I92I.] A. Robertson: Report on Bryozoa. 6i 



Even nutritive zooecia tend to become larger as they approach 

 the margin (B, nu. zoe.), A relatively small number of zooecia 

 attain a very large size (B oe. zoe.), whose wall becomes highly 

 calcified and porous. These are the reproductive zooecia charac- 

 teristic of this genus. The outermost row of the margin consists 

 of zocecia which function only as avicularia (av. zoe.); mandible 

 directed obliquely upward and outward. 



Dredged at 65 fathoms near Mergui Archinelago, station 535 

 (I3°4'30"N., 96°44'E.). 



79- Lagenipora costazii, Audouin. 



Cellepora costazii, Hincks, 1880, p. 411, pi. 1\ , tigs. 11-14. 



Found quite commontyj incrusting stems of seaweed : Manga- 

 lore, off Carwar and Mulki ; at Cheval Paar ; Colombo ; dredged 

 at 10-15 fathoms at Seven Pagodas, Madras, and at 34 fathoms 

 by the " Investigator " at 6°oi' N., 8i°i6' E.; also dredged off 

 Gopalpore at 28-25 fathoms and Ganjam at 25 fathoms. 



80. Lagenipora tuberculata, MacGillivray. 

 Lagenipora tuberculata, MacGilli\ra)-, 1882, p. 209, pi. 156, figs, i, 2. 

 Identification tentative. Material obtained at two localities 

 growing on coral conglomerate: Laccadives, and dredged at 34 

 fathoms by the " Investigator " in 6°oi' N. and 8i°i6' E. 



81. Holoporella aperta, Hincks. 

 Holoporella aperta. Waters, iqog, p. 161, pi. 18, figs. 20-23. 

 Dredged at 24-30 fathoms oft" the Ganjam coast. 



82. Holoporella tridenticulata, Busk. 



Cellepora iridenticulafa, Busk, 1SS4, pt. xxx, vol. \, p. 195, pi. \\ix, 

 fig. 5. 



Obtained at Cinque Island, Andanians, '' Investigator " ; also 

 near Puri, Orissa coast. 



83. ? Holoporella mammillata, Busk. 



.' Cellepora maiiinnllata, Busk, 1854. pt. ii. pi. cxx, figs. 3, 4, 5. 



In most points this species agrees with the description 

 given by Busk, but this identification considered somewhat 

 doubtful. Common, found at depths ranging from 15 fathoms to 

 703 falhoms at eight stations in the Bay of Bengal. 



84. Cupularia canariensis, Busk. 



Ciipularia canariensis. Busk, 1859, vol. 7, p. 66, pi. 22,. figs. 6-tj. 



Several colonies of various sizes obtained at the Andamans. 

 The largest colony is about ii mm. in diameter and 2 mm. high at 

 the apex. The others vary from 8 to 5 mm. in diameter. The 



