DECAPODA (mACRURA). 
Orust, 23 
Hoplo 2 )liorus gracilirostris, sp. n., id. 1. c. p. 6, Dominica, 118 fath. 
^ Notostomus^g. n. Near cephalothorax much more gibbous, 
elevated, and compressed ; rostrum broad at the base, covering the eyes 
partly ; feet long, with distinct palpiform appendage . N. gibhosus and 
elegans, spp. nn., West Indies, 626 & 955 fath. , Id. 1. c. pp. 7 & 8. 
Gonatonotus, g. n. Near Hoplophorus, rostrum very elevated, many- 
toothed ; sub-antennal scale large and rounded ; feet of the first pair 
short and thick, didactyle, of the second more slender and didactyle, the 
following monodactyle, all with a small palpiform appendage. G. crassus, 
sp. n., Grenada, West Indies, 262 fath. Id. 1. c. pp. 10 & 11. 
PENA?IDiE. 
C. Spence Bate having examined the types in the Museum of the 
J ardin des Plantes, publishes notes and often figures of them, together 
with a general review of the family and its genera, an enumeration of 
the specimens taken during the ‘ Challenger ’ Expedition, and descrip- 
tions of some new species. Ann. N. H. (6) viii. pp. 169-196, pis. xi. & xii. 
Sicyonia loivis, sp. n., id. 1. c. pp. 172 & 173, New Guinea, 150 fath., 
with notes on some known species. Note on the synonymy of S. sculpta ; 
Miers, tom. cit. p. 367. 
Penceus. Generic description and notes on many species, setiferus (L.), 
monoceros (Fabr.), indicus (M.-Edw.), affinis (M.-Edw,), and hrevicornis 
(M.-Edw.) figured; Bate, 1. c. pp. 173-180, pi. xi. figs. 1-3, & pi. xii. 
figs. 1 & 2. P. Jlssurus, New Guinea, rectacutus, Philippines, 100 fath., 
2 )hilippii, Philippines, anchorilis^ New Guinea, telsodecacanthus, Japan, 
and serratus, Fiji Islands, 100 fath., spp. nn. id. 1. c. pp. 180-182. 
Pehccus velutinus (Dana), specimens from Goree ; Miers, 1. c. p. 367. 
Penmis politus, sp. n., S. I. Smith, P. U. S. Nat. Mus. iii. p. 444, New 
England, 142 fath. 
Penceopsis, (A. M.-Edw. MS.), g. n. Like Penoius, but with the flagella 
of the first pair of antennae longer than the carapace, and cylindrical. 
P. serratus (A. M.-Edw.), sp. n.. Gulf of Mexico. Penoius sty lif eras 
(A. M.-Edw.) and dohsoni (Miers) belong also to this genus. C. S. Bate, 
1. c. pp. 171, 182 & 183. 
Solenocera lucasi, sp. n., id. 1. c. pp. 183-185, New Guinea, 130 fath., 
with notes on the known species. 
Haliporiis, g. n. Body more slender than in Penceus and Solenocera ; 
second pair of gnathopods as long as and stouter than the periopods ; 
flagella of the first pair of antennae long, sub-equal, cylindrical ; telson 
long and narrow, laterally compressed. II. curvirostids, mid-Pacific, 
2375 fath., Icevis, mid-Atlantic, 2500 fath., neptunus, Celebes, 600 fath., 
and obliquirostris, off Kermadec Island, spp. nn. Id. 1. c. pp. 171, 185, 
& 186. 
Hemi2^e7iceus, g. n. Rostrum straight, short ; five podobranchiae present. 
IJ. sinnidor satis, South Atlantic, 1900 fath., sp>eciosus, Atlantic, 2650 fath., 
virilis and dubius, Philippines, 255 & 20 fath., spp. nn. Id. 1. c. pp. 171, 
186 & 187. 
Aristeus (Duvernoy, 1841), re-established; rostrum long; five podo- 
1881. [voL. xviii.] ^ B 17 
