of (he ^' Genus ^' 'Pcncns. 515 



7. Peneus latisuleatus, Kishinouj^e, Journ. Fisheries Bureau, Tokyo, viii, 



i. 1900, p. 12, pi. ii. £«;•. 2. (Perhaps a form of P. canaliculatus.) — 

 Japan. 



8. Peneus brasiliensis, Latreille, Milne-Edwards, op. cit. p. 414. — Both 



sides of Atlantic in warm latitudes. 



II. Antennular jftaffella not so long as their peduncle ; no postocular 



spine and crest. 



9. Peneus monodon, Fabr., Milne-Edward^, Hi^t. Nat. Crust, ii. p. 416. 



( = P. esculentus, Haswell, P. L. S. N.S.W. iv. 1879, p. 36; also 

 = P. ashiakn, Kishinouye, Journ. Fish. Bur. Tokyo, viii. i. 1900, 

 p. 14, pi. iii.)— Indo-Pacific from E. Africa at least to Japan and 

 ■ Australia. 



10. Peneus car inntus, Dana, U.S. Expl. Exp., Crust, pt. i. p. 602, pi. xl. 



fig. 2. ( Probably = P. monodon, Fabr.) — Sin^^apore. 



11 . Peneus setiferus (L.), ]\[ilne- Edwards, op. cit. p. 414. { = P.Jlu,viatilis, 



Say, Journ. Acad. Nat. Sci. Philad. 1817, p. 236.)— Atlantic 

 coasts of America in warm latitudes. 

 (P. orbiffnyamis, Latr., is supposed by Milne-Edwards {op. cit. p. 415) 

 to be identical with this species.) 



III. Antennular fiagella longer than their peduncle ; no postocular 



spine and crest. 



12. Peneus indicus, Milne-Edwards, Hist. Nat. Crust, ii. p. 415. — E. Africa 



to the Malay Archipelago and perhaps beyond. 

 Peneus indicus, var. mergmensis, de Man, Journ. Linn. Soc, Zool. xxii. 



]888, p. 287, pi. xviii. fig. 8, pi. xix, fig. 1 ; and Zool. Jahrb., Abth. 



Syst. X. 1888, p. 680. — AH coasts of India, also Java. 

 Peneus indicus, var. penicillatus^ Wood-Mason, MS. — Coasts of India. 



13. Peneus occidentalis. Streets, Proc. Acad. Nat. Sci. Philad. 1871, p. 243. 



(Supposed by Miers to = indicus, Edw.) — Panama. 



14. Peneus stylirostris, Stimpson, Ann. Lye. Nat. Hist. N. York, x. 1874, 



p. 184. (Supposed by Miers io=indici(s, Edw.) — Panama. 



15. Peneus balbofe, Paxon, 1893, vide Mem. Mus. Comp. Zool. Harvard, 



xviii. 1895, p 181, pi. xlvii. figs. 1-1 c. — Ofi'Cocos Island (Panama), 

 770 fath. 



IV. Ao e.ropodite on the last pair of thoracic appendages. 



16. Peneus semisulcatus, Be Haan, Faun, .lapon., Crust. 1850, p. 191, 



pi. xlvi. fig. 1. — E. Africa to Australia and Japan. 

 Peneus tahitensis, Heller, * Novara ' Crust. 1865, pi. xi. fig. 2. (Seems 



to be identical with P. semisulcatus, De H.) — Tahiti. 

 Peneus gracilirostris, Thallwitz, Abb. u. Ber. Zool. Mus. Dresden 



(1890-91 ), 1892, no. 3, p. 3, tig. 5. (Probably identical with P.semi- 



sulcatus, De H.) — N. Celebes. 



17. Peneus ceeruleus, Stebbing, Marine Investig. S. Africa, Crust, pt. iii. 



1905, p. 77, pis. xxi., xxi. bis. — E. coast of S. Africa, about 33-' S. 



2. Heteropeneus, de Man, 



Ileteropeneus, de Man, Zool. Anzei?er, 1896, p. Ill, and Zool. Jahrb., 

 Syst. Abth. x. 1898, p. 684, pi. 'xxxviii. tig. 75 ; Nobili, Boll. Mus. 

 Torino, xviii. 1903, no. 455, p. 4. 



Rostrum toothed both doivsally aud ventrally. Antero- 

 inferior angles of carapaCe not spiniform. Postanteniiular 



34* 



