GNATHOPODA — MORFHOLOGY. 
Crust. 19 
Oncaia notopus , 0. media , 0. concifera , 0. ornata , 0. tenuimana, 0. den- 
tip&s , n. spp., to. £. c. pp. 476 & 477. 
iConcea rapax , n. g. & sp., to. 2. c. p. 477. 
LubbocJda aculeata , n. sp., to. 2 &to. 
F achy soma tuberosum , n. sp., to. £. c. p. 478. 
Sapphirina aureofurca , & stellata, S. scarlata , & intestinata , £. gastrica , 
& bicuspidata , & vorax, n. spp., to. e&to. 
^ Corina granulosa , n. g. & sp., to. c. p. 479. • 
Copilia lata , C. oblong a , C. elliptica , (7. recto, n. spp., to. «6to. 
Corycceus robustus , (7. dance, C. flaceus, C. alatus , (7. gracilicauda, C. 
tenuis , (7. lubbockii , (7. carinatus , (7. gibbulus, n. spp., to. £. c. pp. 480 & 481. 
Lichomolg us poucheti, n. sp., Canu, Bull. Sci. Fr. Belg. xxiii, p. 478. 
Ilerrmannella rostrata , n. sp., to. £. c. p. 480. 
Pseudanthessius sauvagei, n. sp., to. £. c. p. 481. 
Clytemnestra hendorjffi , n. sp., Poppe, Abh. Yer. Brem. xii, p. 132, pi. i. 
Splanchnotrophus willemi, n. sp., Canu, C.R. cxiii, p. 4&5. 
Argulus melita , n. sp., van Beneden, Bull. Ac. Belg. xxii, p. 369. 
Legion 6. ANCHORACEPHALA. 
Order 13. CIRRHIPEDIA. 
Scalpellum calcariferum , n. sp., Fischer, Bull. Soc. Z. Fr. xvi, p. 117. 
Scalpellum stearnsii, n. sp., from Japan, Pilsbury, P. Ac. Philad. 1890, 
p. 441. 
Cirrhipedes pedunculatus laciniatus, n. sp., Hesse, Ann. Sci. Nat. xi, 
p. 180, pi. y. 
III. — MORPHOLOGY. 
General. 
For an account of the general structure of the Halocypridce , see Claus, 
Arb. z. Inst. Wien, ix, p. 126. 
Moniez (C.R. cxii, p. 669) finds that collections from all parts of the 
world indicate that males of Cypris and allied genera are far more 
common than appears to be the case in European waters. Moreover, he 
finds no support for the belief that the production of males is influenced 
by the season of the year or the degree of saltness of the water. 
In his monograph on Bohemian Ostracoda, VAvra gives a brief account 
of the anatomy of this group on pp. 9-25. 
Edwards & Bouvier (Bull. Soc. Philom. iii, p. 102) consider it estab- 
lished that the Paguridce of the deep sea resemble ancestral forms, and 
this resemblance decreases progressively as the coasts are approached. 
Habits and Abnormalities. 
Herrick (l) recounts some observations on the habits of the American 
lobster. Eggs are laid during July and August, and they take from six 
