504 
ZOOLOGICAL LITEllATUllE. 
the oysters, hut is distinguished from them by its foot. Avicula is, among the 
Malleacea, nearest to MytiluSf and agi’ees with Malleus and Perna in the 
possession of a byssus. Vaillant, Oompt. Rend. 1868, pp. 1122-1125, or Ann. 
Sci. Nat. ix. p. 281. 
Pinna nidis. Hidalgo maintains the distinctness of this species from the 
European P. pectinata^ Journ. Conch, xyi. p. 83. 
OSTREACEA, Guv. (Pectinacea, Ad.). 
Trigonia. Dr. E. Selenka has given an account of the anatomy of this 
genus, Mai. Blatt. xv. pp. 66-72, pis. 2-3. 
Area diluvii. The young shell is provided with longitudinal radiating 
furrows ; this is A. didyma (Brocchi) ; and there is a variety with very large 
area, and therefore very distant summits, named A. ivemkatiffi by Crosse. 
Such individual varieties occur also in other species of Area and in other 
genera, which are fixed in narrow places between stones, in clefts of rocks, 
and therefore compelled to adapt their growth to the locality. Tiberi, Journ. 
Conch, xvi. pp. 81-84. — ^WeinkaufF maintains the distinctness of this species 
from diluvii. Conch, d. Mittelm. ii. p. 439. 
Area constrieta, marte7isii, and signata, spp, nn,, Dunker, Novitat. Conch, 
part 13. pp. Ill, 112, pi. 37. figs. 17, 18, pi. 38. figs. 1-3 & 6, localities not 
known. — A, maculata (Reeve) figured, ibid. pi. 37. figs.14-16. 
Barhatia oUongUf sp, n., Dunker, 1 . c. p. 107, pi. 37. figs. 1-3, New Holland. 
— B. uhlonga, sp. n., Dunker, 1. c. figs. 4-7, Philippines. — B. solidula, sp. n., 
Dunker, 1. c. p. 114, pi. 38. figs. 10-13, California. 
Anomalocardia cequilatei'af sp. n., Dunker, 1. e. p. 109, pi. 37. figs. 11-13, 
Indian Ocean. — A. pulehella, sp. n., Dunker, 1. e. p. 113, pi. 38. figs. 6-8, and 
liscJikeiy sp. n., p. 115, pi. 38. figs. 14-16, localities not known. — A. ehi-e7i- 
bei'gij sp. n., ibid. p. 116, pi. 38. figs. 17, 18, Red Sea. 
Seajiharca pumila^ sp. n., Dunker, 1. e. p. 108, pi. 37. figs. 8-10, locality 
not known. 
Peetuncidus. Weinkauff thinks it best to cancel the Linnean name P. 
pilosus, which most authors use for P. glycijineris, and he considers P. hima- 
eulatus (Po\i)=glycymei'is (Phil.) = (Reeve) to be a distinct species. 
Conch, d. Mittelm. ii. pp. 437-439. 
Cyrilla suleata (A. Adams), Straits of Korea and Gotto Islands, figured, 
Journ. Conch, xvi. pi. 4. fig. 2. 
Sarepta speeiosa (A. Adams), Straits of Korea, figured, Journ. Conch, 
xvi. pi. 4. fig. I. 
Pecten maximus (L.). Its locomotion through the water, by alternately 
opening and closing the valves, is described by Crosse, Journ. Conch, xvi. 
p. 6. 
Spondylus cruentus, sp. n., Lischke, Mai. Blatt. xv. p. 221, Nagasaki. 
BRACHIOPODA. 
Tereh atula cubensis, sp. n., Pourtales, Bull. Mus. Anat. Comp. 1868, p. 109, 
off Havana, in 270 fathoms. 
Tcrebrattdina cailleti, sp. n., id. ibid.. West Indies. 
