108 Moll 
MOLLUSCOIDA. 
Aetiidj}. 
Aetia anguina (L.), forma recta, from Naples ; Waters, Ann. N. H. (5) 
iii. pp. 114 & 115, pi. XV. fig. 7. 
Bucrateid.®. 
This family is equal to Gemellariidce, Busk, omitting Notamia and 
Didymia ; Hincks, 1. c. p. 164. 
Eucratea cordieri (Audouin) ; Waters, Ann, N. H. (5) iii. p. 116, pi. xv. 
figs. 9-11, Naples. 
Scruparia (Oken) restricted to S. clavata (Hincks), with new generic 
definition ; Hincks, 1. c. p. 154. 
Scruparia (Oken, restr.) = Scricpocellaria (Gray, pt.) = Canda (Busk, 
nec Lamx.), lateral avicularia and vibracula absent ; a lateral spine 
developed into a protective shield. S. reptans (L.). Verrill, Am. J. Sci. 
(3) xviii. p. 63. 
Brettia tubceformis \_tuhif-'\, sp. n., Hincks, 1. c. p. 154, S.E. coast of 
England and Hebrides. 
OELliULARIlDiE. 
Cellularia (Pallas, restr.) divided into 2 subgenera, Cellularia = Scrup)o- 
cellaria (Gray, Busk, pt.), lateral spines all simple, and Cellarina (Van 
Beneden) = Tricellaria (Flem.), one of the lateral spines more or less 
dilated ; C. scabra (Van Beneden) and ternata (Solander). Verrill, Am. 
J. Sci. (3) xviii. p. 53. 
BrCELLARIID^E. 
Bugula decorata and cucullata, spp. nn., Verrill, 1. c. p. 52, Maine. 
Bugula prismatica (Gray) ; Hutton, Tr. N. Z. Inst. ix. p. 359, New 
Zealand. 
Bugulella, g. n. ; stems dichotoraously branched, consisting of single 
series of zooecia connected by short tubular joints ; zooecia elongated, 
expanded distally, with a large sunken elliptical frontal area, which is 
surrounded by spines. Ooecia subglobular, attached to the distal end of 
the zooecia. Avicularia shaped as in Bugula. B.fragilis, sp. u.. East of 
George’s Bank, Maine, 220 fath. ; Verrill, Am. J. Sci. (.3) xvii. p. 472, 
Bugulopsis, g. n., = Celhdaria (Busk, pt., nec Pallas) ; zooecia simple, 
unarmed, in alternating rows ; no avicularia, vibracula, or shields. B. 
peachi (Busk), N. Europe and New England. Verrill, op. cit. xviii. 
p. 63. 
Cellaeiid^. 
Tubucellaria cereoides (Ellis & Solander) = Onchopora tubulosa (Busk), 
from Naples, described by Waters, Ann. N. H. (6) iii. p. 118. 
Onchopora sinclairi, sp. n.. Busk, Phil. Tr. clxviii. p. 193, pi. x. figs. 1 
& 2, Kerguelen Island and New Zealand. 
