DECAPODA (bRACHYURA). 
Orust. 18 
rejects the division Oxy stomata of M. -Edwards, because it comprises too 
different types ; pp. 146 & 202. 
E. Nauck, having examined the solid plates in the stomach of many 
genera of Bracliyura^ proposes with regard to them the following classifi- 
cation : — 
I. Heterodonta. The middle supero-median very broad, with high 
lateral edges ; its middle tooth not composed of lamelloB 
the anterior supero-laterals situated before the anterior supero- 
median. Families Gelasimidco and Pinnoteridce. 
II. Cyclodonta. The middle tooth consisting of circular lamellae ; 
the anterior supero-laterals situated by the side of the anterior 
supero-median. 
a. Coslostylidea . The middle supero-median narrow and elon- 
gated, with elevated lateral edges. 
1. Catometopa (M.-Edw.). Pinnoteridai and Gelasimidce ex- 
cluded. 
2. Oxyrrhyncha (M.-Edw.). 
B. Platystylidea. The middle supero-median broad, its lateral 
edges not or scarcely elevated. 
1. Oxystornata (M.-Edw.). 
2. Cyclometopa (M.-Edw.). 
Eriphia belongs in this respect to the Cyclometopa ; Trapezia is quite 
peculiar, and constitutes a connecting link with the Heterodonta. Z. wiss. 
Zool. xxxiv. pp. 1-69, pi. i. 
iNACHlDiE. 
Leptopodia sagittaria (Leach) = ornata (Guilding) =;: lanceolatd 
(Brull^), Florida, West Indies, Brazil, Madeira, Canaries, Senegal, per- 
haps also west coast of America ; Kingsley, P. Ac. Philad. 1879, pp. 383 
& 384. 
Stenorrhynchus czernjawshii, sp. n., A. Brandt, Bull. PeterSb. xxvi. 
pp. 396-399, Black Sea ; compared with IS. longirostris (F.) and phalan- 
gium (Penn.). 
Achceus cranchi (Leach). Description of Mediterranean specimens by 
R. A. Philippi, published by A. Brandt, 1. c. pp. 399-401. 
Achceus breviceps, sp. n., Haswell, P. Linn. Soc. N. S. W. iv. [1879] 
p. 433, Port Jackson. 
Cory [r] rhynchus^ new name for Podochela and Podonema (Stimps.), 
both pre-occupied ; C. ruesi (Stimps.), Florida. Kingsley, Am. Nat. 
xiii. [1879] p. 585, and P. Z. S. 1879, p. 384. 
Euprognatha acuta, sp. n., A. Milne-Edwards, Bull. Mus. C. Z. viii. 
p. 7, West Indies, 84-208 fath. 
Lispognathus, g. n. Cephalothorax pear-shaped, eyes not retractile, 
rostrum bifid ; exognath of the outer maxillipeds very long, its mero- 
gnath much narrower than the ischiognath, contracted at its base and 
rounded at its extremity ; ambulatory legs long and slender. Between 
Euprognatha and Anisonotus. L.furCatus, sp. n., A. Milne-Edwards, 1. c. 
pp. 8 & 9, Grenada, W. Indies, 291 fath. 
