572 
ZOOLOGICAL LITERATURE. 
Oorgonia {Pterogorgia) gracilis, sp. n., Verrill, 1. c. p. 359, and pi. 4, figs. 2 
& 3 (spicules), Abrolhos Reefs. 
Heteorogorgia, g. n., Verrill, 1. c. p. 413. Horny axis ; coenenchyma smooth, 
with very small spindle-shaped spicules ; cells verruciform, armed at the sum- 
mit with longer, slender, projecting, and divergent sharp spicules, which are 
often much bent. II. verrucosa, sp. n., Verrill, 1. c. p. 413, Panama ) 11. tor- 
tuosd, sp. n., Verrill, 1. c. p. 413, Panama. 
Psammogorgia, g. n., Verrill, /. c. p. 413, for Echinogorgia arhuscula, 
Ver. Psammogorgia arhuscula, Verrill, is described and figured by Verrill, 
1. c. p. 414, pi. 5. fig. 17, pi. 6. fig. 9j two varieties, doioii &nd 23ctlHda, are 
desciibed. — P. teres, sp, n., Verrill, 1. c. p. 416, pi. 6. fig. 18, pi. 7. fig. 1, Pearl 
Islands j P. gracilis, sp. n., Verrill, 1. c. p. 417, pi. 5. fig. 19, pi, 0. fig. 10, Pearl 
Islands. 
Astrogorgia, g. n., Verrill, 1. c. p. 413, for Muricea sinensis, V. 
Acanthogorgia aspera, sp. n., Pourtales, 1. c. p. 113, off Havana, 270 fathoms ; 
A. hirta, sp. n., Pourtales, 1. c. p. 131, off Florida Reef, 324 fathoms. 
Filigella, g. n.. Gray, 1. c. p. 443. Coral free, filiform, simple, slender, rather 
rigid. Bark thin, transparent, formed of a single series of flattened subfusi- 
form, elongate spicules placed close together side by side, forming a hard 
coat ; ends blunt, ovate, covered with spicules like the stem. The axis horn- 
like, slender, cylindrical. Polype-cells short, broad, conical, very far apart, 
those next each other being on different sides of the stem, forming a subspiral 
series covered with a single series of close spicules like the bark. The cells 
near each end of the coral are very much alike, and the ends of the coral 
very similar and covered with spicules ; but there does not appear to be any 
opening for the polype : they are probably the buds by which the coral grows 
in length. F. gracilis, sp. n., Gray, 1. c. p. 444, fig. 2 (woodcut). Cape Frio, 
near Rio de Janeiro. 
Plexaura reticulata, Phil., is a Gorgonia, Kol., but the name G. reticidata 
is already in use ; so Verrill, I, c. p. 414, proposes to call it Gorgonia pe- 
ruviana. 
Juncella extans, V, (Jan. 1864) =t7. Jiagellum, Johnston (Aug. 1864), Verrill, 
/. c. p. 413. 
Isis (P) gregorii, sp. n., Gray, 1. c. p. 263, Inosima, Japan. 
Isis Jlexihilis, sp. n., Pourtales, 1. c. p. 132, oft’ Florida Reef, 324 fathoms. 
Isidella lofotensis, g. et sp.n., Sars, Vid. Selsk. Forh. 1867, p. 22, 300 fathoms, 
Skraaven. 
Melithceacece. 
Mopsea ehurnea, sp. n., Pourtales, 1. c. p. 132, off Sombrero Light, 517 
fathoms. 
Anicella, g. n., Gray, 1. c. p. 446. Coral fan-like, dichotomously branched ; 
branches separate, divaricating, in the same plane, arising from the short, 
rather sunken joints. Bark thin, hard, smooth, longitudinally grooved. Cells 
minute, subcylindrical, short, produced in a narrow alternating series on each 
edge of the branches and branchlets. Axis calcareous, solid, with longitudinal 
grooves ; internodes very short, contracted, bark-like. This genus differs 
from Melithcea in the bark being smooth and the internocles not swollen, and 
from Isis in the internodes being bark -like and not cartilaginous. A. australis, 
,sp. n.. Gray, 1. c. p. 445, fig. 4 (woodcut). Port Essington. 
