13. 



14. 



49 





P. Ccerideus, 



StebbinET. 



1 Marine Invest. S. Africa, Crust, pt. III. 1905, p. fE. coast of S. Africa, ' 

 J 77, pi. xxi, xxi fci's. \ aboul 



about 33° S. 



vi. Uncertain and doubtful species : 



P. balboai, 



Faxon. 



P. orbignyanus, 



Latreille. 



P. gracilirostris, 



Thallwitz. 



f Bull. Mus. Comp. Zool. Harvard, XXIV. 1893,1 

 p. 211 ; and Mem. ilus. Comp. Zool. Harvard XVIII. 

 No. 15, 1895, p. 181, pi. xlvii. fig 1-lc. 



Somite XIV has a pleurobranch ; all the thoracic 



■ legs have exopodites ; there is no postocular spine I 



' and crest; the antennular flagella are longer than , 

 their peduncle ; but the telson is armed with minute 

 lateral spinelets. This last character separates it 

 from the P. indinis group to which it otherwise 



l^adheres. 



Nouv. Diet. d'Hi,st. Nat. XXV. 1817: Milne Ed-" 

 wards op. cit., p. 415. 



Considered by Milne Edwards to be not speci- 

 fically different from P. sefiferus, L. 



Abh. u. Ber. Zool. Mus. Dresden, 1890-91, No. 3, ' 

 p. 3, fig. 5. 



May perhap.s be an abnormal individual of P. 

 semisulcatus, De H. 



Off Cocos Islands 

 (G. of Panama 

 region) 770 fa- 

 thoms. 



B. of Biscay. 



vf- 



1>^ 



/tM'- 



\\\ 



U- 



N. Celebes. 



1. TI. longimanus, 

 de Man. 



II. Genus Heteropeneus, de Man. 



Zool. Anzeiger, 1896, p. Ill, and Zool. Jahrb., ^ „ i t i- » i- 

 Syst., X. 1898, p. 684, pi. xxxviii. fig. 75: Nobili, j ^''^\ 1°^^'^" ^'•«^'- 

 Boll. Mus. Torino, XVIII. 1903, No. 455, p. 4. 



pelago. 



^tf 5,^.. I 



u 



So. 



III. Genus Metapeneus, Wood-Mason. 



i. Species having no lateral marginal spines on the telson : the last pair of thoracic legs are 

 without an exopodite and, in the adult male, their merus has a notch and spine, or tooth, at its 

 projrimal end. 



M. MONOCEROS, C 



Fabr. [ 

 M. APFiNis, Edw. 



Ante. 

 Ante, 



Africa to Japan 

 and Australia. 



V- 



Karachi to Japan. 



-. C Perhaps = If. affinis, Edw. ) . 



IM.. mutatus, \ p^ g igoi, II. p. 572, pi. xxxiv. fig. 6 : Nobili, \ Malay Peninsula.) 



V Lanchester. ) Pi ., ,,„„ ^ .,^,^ '.pno Tvr„ a^k „ q ^ \ ' ' 



3. M. DOBSONI, t 



Miers. ( 



(.Boll. Mus. Torino, 1903, No. 455, p. 3. 

 Ante. 





India and Ceylon. 







r Ann. Mag. Nat. Hist. (5) V. 1880, p. 458, pi. iv." 

 4. M. Joyneri, \ fig. 8-10. Very close to M. Dobsnni. Kishinouye, I t „, 



Miers. 1 Journ. Fish. Bur., Tokyo, VIII. i. 1900, p. 19, pi. v., P-^aP*"' 

 (,vii. fig. 7, 7o-c 



5. M. BREVICORNIS 



Edw, 



M. LTSIANASSA, 



de Man 





Ante. 

 Ante. 



Mauritius to Borneo. 

 Bengal to Singapore. 



ii. Species without lateral marginal spines on telson, and without notch or spine on merus 

 of last pair of thoracic legs: — 



.,..«, , , ""t ^''-- Tf-. XVIII. 1903 No. 452, p. 2, fig. "l p^^icheny and 

 N Vi r 1 May possibly be the nou-adult form of J/, nictiu- > •' .^j^ 



° '■ ( ceros. J 



7. M. deschampsi, 



Mahe. 



