23 Crust. 
CRUSTACEA. 
several of them, including P. hirtipes and crenulatus^ P. [Pisosoma) sinui- 
manuSf gihbosicarpus, setimarlus, and biocellatuSy spp. nn., Gulf of Cali- 
fornia, W. N. Lockington, Ann. N. H. (5) ii. pp. 395-403. 
Porcellana (Petrolisthes) mossambica, sp. n., and ? rufescens (Heller), 
Hilgendorf, MB. Ak. Berl. 1878, p. 825, pi. ii. figs. 6 & 7, Mozambique. 
Petrocheles spinosus (Miers), Miers, Crust. New Zeal. p. 61, pi. i. fig. 5. 
Pachycheles tuber culif era, sp. n., Lockington, 1. c. p. 404, Gulf of Cali- 
fornia. 
Pachycheles barbatus, sp. n., A. Milne-Edwards, Bull, Soc. Philom. June, 
1878, p. 9, Cape Verde Islands. 
Porcellana cessaci, sp. n., id. 1. c. p. 10, Cape Verde Islands. P. rupi- 
cola (Stimps.), from New Zealand ; Kirk, Tr. N. Z. Inst. xi. p. 396, with 
woodcut. 
Porcellana transversilineata, sp. n., Lockington, 1. c. p. 405, Gulf of 
California. 
Polyonyx nitidus, sp. n., id. ibid. Lower California. 
MAORURA. 
Galateid^. 
Galatea strigosa (F.). Habits observed in the aquarium at Hamburg ; 
Bolau, Zool. Gart. xix. p. 150. 
/ Galatea bocagii, pseudo-radiata, agniarii, and quanzce, spp. nn., Brjto 
^ 1^) Capello, “Description de quelques especes du genre GaZa/ea,’^ Lisbonne : 
1 1878, with 4 pis. pp. 7, 8, 9, & 10, pis. iii. & iv., Quanza River, Angola. 
1 G. cumingi (Beck), several varieties ; id. 1. c. p. 13, pis. i. & ii. 
^ Munida specioea, sp. n.. Martens, SB. nat. Fr. 1878, p. 133, Western 
Africa, 10° N. lat., 17° W. long., 150 fath. 
Palin URiDAC. 
T. J. Parker describes the stridulating organ of Palinurus vulgaris, 
consisting of a ridged pad, a minutely hairy flap, and a guiding tubercle 
situated in the basicerite of the antenna and a lateral ridge on the 
antennulary sternum of clypeus. The stridulation and the friction of the 
antenna against the clypeus have been already observed by Leach, and 
the organ has been described by K. Mobius, Arch. f. Nat. 1867 ; but the 
author differs from the latter in ascribing the friction to the pad and not 
to the flap. P. Z. S. 1878, pp. 292 & 442-444, pi. xxx. 
G. PoucHET states the existence of a “muscle vibrant^’ at the base of 
the large feelers in Palinurus. Assoc. Fr. vii. (Paris: 1878) p. 756. 
Young specimens of Palinurus, probably fasciatus (Fabr.), from Am- 
boina, only 25 mill, long, but resembling the adult in form ; E. v. 
Martens, SB. nat. Fr. 1878, p 132. 
Palinurus penicillatus (Olivier) = ehrenbergi (Heller), Red Sea ; Miers, 
Ann. N. H. (5) ii. p. 410. 
. Palinurellus, g. n., distinct from Palinurus by the rostriform front 
