GNATHOPODA, MORPHOLOGY. 
Crust . 23 
Euchceta hebes , £7. media , E.flava , 2£. longicornis, E. grandiremis , n. spp 
•£?. p. 337. 
Scolocitkrix bradyi , abyssalis i S. marginata , longifurca , 5. porrecta , 
and $. ctenopus, n. spp., p. 338. 
Giardella callianassce, n. g. & sp., Canu (2). 
ITersiliodes , n. g., with n. spp. pelseneeri and thomsoni ; *<i. 
Popella guernii , n. g. & sp., Richard, (2) p. 69. 
Ascomyzon comatulm, n. sp., parasitic on Antedon comatula ; Rosoll. 
Astericola clausii, n. g. & sp., parasitic on Asterias ; 
Lichomolpus sabellce , n. sp., parasitic on gill of Sabella, taken at Beau- 
maris ; Thompson (1). 
Diaptomus : 2 n. spp. from Algeria ; de Guerne (2). 
Geographical distribution of Diaptomus ; de Guerne & Richard. 
Two new N. European spp. of Diaptomus ; Lilljeborg. See also 
Poppe. 
Hesse describes Cecrops laireillii and Lcemargus muricatus , hitherto 
inadequately described. 
Thompson (2) gives- 64 spp. of Copepoda of Madeira and the Canaries, 
distributed as follows: — Calanidce , 20 spp.; Cyclopidee, 4 spp.; Har- 
pactidoe } 16 spp. ; Corycceidce, 11 spp. ; Artotrogidce , 3 spp. The following 
are the new species : — 
Candace nigrocincta , n. sp., p. 148, pi. x, figs. 1-6. 
Candace brevicornis, n. sp., p. 149, pi. x, figs. 7 & 8. 
Mecynocera clausi , n. g. & sp., p. 150, pi. xi, figs. 1-4. 
Machairopus sanctce-crucis , n. g. & sp., p. 152, pi. xii, figs. 1-5. 
Acontiophorus angulatus , n. sp., p. 153, pi. xii, figs. 6-11, & pi. xiii f 
figs. 5 & 6. 
Cymbasoma rigidum, n. sp., p. 154, pi. xiii, figs. 1-4. 
Temorella ajjinis n. var. hirundoides ; Nordquist, (2) p. 238, pi. iv, figs. 
5-11. 
Temorella ajjinis n. var. hispida ; id. p. 243, pi. v, fig. 1. 
Diaptomus zograji and D. boyddanouvii ; Korciiagen. 
Legion 6. AN CHOU A CEPE ALA . 
Order 13. CIRRHIPEDIA. 
Structure of the stalk of Cirrbipedes. A preliminary note ; Kcehler. 
Lepas fascicularis ; Leidy (2). 
Development of Lepas ; Nussbaum. 
III.— MORPHOLOGY. 
Reproduction . 
The effects of parasitic castration in Macrura are not uniform, being 
probably dependent on the period at which the animal is infested.. 
