20 Orust , 
CRUSTACEA; 
vesicles at the second gnathopods, the first periopods, and the footless 
fourth perion segment. D. elongata , sp. n., from the ‘ Challenger ’ Expe- 
dition, no locality given. Stebbing, Ann. N. H. (5) xvi. p. 207. 
ISOPODA. 
L. Huet has published some valuable anatomical observations on this 
Order, remarking upon several points in which it approaches the Arach - 
nida and Insecta , as, for example, the silky secretion of the cutaneous 
glands in some terrestrial genera, the white bodies of the opercular 
gills as rudiments of a tracheal system, &c. ; J. de l’Anat. Phys. xix. 
pp. 241-37G, 4 pis. ; abstract in J. It. Micr. Soc. (2) iii. pp. 835 & 83G. 
Tho geographical and palaeontological distribution of the Isopoda aro 
treated upon by A. Gerstacker in his continuation of Bronn’s Klassen 
u. Ordnungen des Thierreichs, v. Arthropoda, 2nd division, pp. 241-278. 
On the organs of generation in this Order [see supra, p. 7] . 
Tanaioe. 
Tanais cerstedtl (Kroyor) = rhynchites , male, and balticus, female (Fr. 
Muller), observed at Kiel and anatomically described ; H. Blanc, Zool. 
Anz. 1883, pp. 634-637. 
’ Apseudes (? g. n.) timaruvia , sp. n., Chilton, Tr. N. Z. Inst. xv. 
pp. 146-149, pi. xviii., Timaru. Eyes not pedunculated. 
Anthuride. 
Phreatoicus, g. n., C. Chilton, Tr. N. Z. Inst. xv. p. 89. Of uncertain 
position, having affinities to several distinct groups, and therefore of con- 
siderable antiquity. Superficially resembling some Amphipoda ; also re- 
sembling Idotea in its elongate form, antennae, and plate at the base of 
the maxilliped, but with different abdomen and an appendage to the 
mandible. Also resembling Anthura and Paranthura , but approaching the 
Tanaidce in its long abdomen, composed of separate segments. P. typicus , 
sp. n., ibid. pi. iv., from a pump at Eyreton, New Zealand. 
Anthura affinis, sp. n., id. 1. c. p. 72, pi. i. fig. 4, Lyttelton Harbour, 
New Zealand. 
IDOTEIDE. 
Idotea entomon (L.) and sabinii (Kroyer) figured, and an account of 
their geographical distribution given; Stuxberg, l. c. pp. 717-721, 727-729, 
& 753. 
Idotea elongata. Note on its habitat ; C. Chilton, N. Z. J. Sci. i. p. 517. 
AsELLIDE. 
Asellus communis (Say) and Munnasellus tenax (Smith) found at Jack- 
son, Mississippi, &c. ; Hay, Am. Nat. xvi. pp. 241 & 242. 
