564 REPORT—1885. 
In the Report, p. 136, Mr. Busk indicates other species as belonging 
to this group, but these are not in the ‘ Challenger ’ collection. 
3. Flustramorpha flabellaris, Busk. 
4., is patagonica, Busk (MS. ?) 
Genus 63. Microporella, Hincks (Busk ?). 
‘Zoarium erect and bilaminar, or incrusting and adnate. Mouth 
semicircular, with a straight entire lower border, with or without oral 
spines. An aviculario-vibracular organ on one side of the front, with the 
mandible forked at the base, or unarmed.’—Chal. Rep. p. 137. 
1. Microporella personata, Busk, (sp.), ‘ Chal. Rep.’ p. 137, woodcut 
= Lepralia personata, Busk 
= Microporella ciliata, var., Hincks. 
2. 6 Malussi, Aud., ‘ Chal. Rep.’ p. 137. 
3: is ciliata, Pallas, (sp.), ‘Chal. Rep.’ p. 138. 
These are the whole of the Microporella given by Mr. Busk in the 
‘Challenger Report.’ As Mr. Hincks has, however, added to the list 
considerably since the publication of the ‘ British Marine Polyzoa,’ I add 
the whole to the above without abridgment. As Mr. Busk’s estimate of 
some of his own species, formerly described in the ‘ British Museum 
Catalogue,’ differs from that of Mr. Hincks, it will be far better for the 
student of Marine Polyzoa to compare one author with the other before 
giving a decision either way. It is very certain that some at least of the 
species of Mr. Hincks will have to be turned over to other genera. 
Genus Microporella, Hincks. 
‘British Marine Polyzoa,’ vol. i. p. 204, which see for synonyms. 
‘Zoarium incrusting. Zocecia with a semicircular aperture, the lower 
margin entire, and a semi-lunate or circular pore below it.’— Op. cit. p. 204. 
‘ We do not know,’ says Mr. Hincks, ‘ the physiological import of the 
definitely shaped opening in the front wall of the cell, which belongs to 
this genus. But the character, which is constant, may fairly be accounted 
of considerable importance, and, taken in combination with the form of the 
aperture, is a good diagnostic mark.’ 
1. Microporella ciliata, Pullas, Hincks, op. cit. p. 206, pl. xxviii. — 
figs. 1-8. 
a Var. a, personata, p. 207 
= Lepralia personata, Busk. 
OP 55 Malusii, Aud., op. cit. p. 211, pl. xxviii. figs. 9-11; 
pl. xxix. fig. 12. 
Var. a, thyreophora, p. 212 
= Lepralia thyreophora, Busk. q 
74 impressa, Aud., Hincks, op. cit. p. 214, pl. xxvi- 
figs. 9-11; pl. xxix. figs. 10, 11. ‘ 
Var. a, bimucronata, Moll. 
Var. cornuta, Busk. 
Var. 3, glabra, Aud. 
» ¥> pyriformis, Busk. 
fs violacea, Johnst., op. cit. p. 216, pl. xxx. figs. 1+. 
Var. B, plagiopora, Busk. Crag form. 
Ru) 
