24 



the posterior margin and laterally near the base of the pleura; the latter carry some small, 

 sharp granules on their posterior half, the pleura of the 2°^ somite moreover some ones on 

 their anterior half. The antennular scale does not terminate in a sharp spine, but its distal 

 extremity is obtuse, probably worn off. The joints of the antennal peduncle are unarmed and 

 the peduncle is a little longer than its scale. 



The legs of the 1^' pair are just as long as the body; those of the 5"^^ are subcheliform, 

 the dactylus one and a half as long as the immobile finger. 



The measurements of this specimen that closely agrees with the quoted description and 



figures, are the following : 



Length of the body 90 mm. • 



„ „ „ carapace, in the middle line 40 ,, 



„ „ abdomen „ „ , „ 50 „ 



Length of the telson 19 „ 



Width „ „ „ 9 „ 



Distance between the antero-lateral angles of the carapace . 18 „ 



Greatest width of the carapace 31 „ 



Length of the legs of the i^t pair 90 , 



Geographical distribution: Bay of Bengal, on the slope of Carpenter's Ridge; 

 1370 to 1540 fathoms (Alcock). 



2. Polycheles typhlops Heller. 



Polyclieles typhlops C. Heller, in: Sitzungsber. Kais. Akad. Wiss. VVien, Bd. XLV, 1862, p. 392, 



Taf. \, Fig. 1—6. 

 Polycheles typhlops C. Heller, Die Criistaceen des siidlichen Europa, Wien 1863, p. 211, 



Taf. Vn, Fig. I, 2. 

 Poly elides typhlops J. V. Carus, Prodromus Faunae Medit. Pars H, Stuttgart 1885, p. 486. 

 Polycheles typhlops Th. Adensamer, in: Denkschr. Math.-Naturw. Classe Kais. Akad. Wiss. 



Bd. LXV, Wien 1898, p. 621. 

 Polycheles typhlops A. Senna, in: Bull. Soc. Entomol. Ital. XXXIV, Firenze 1903, p. 332, 



Tav. XVIII, fig. I — II. 

 Polycheles typhlops E. L. Bouvier, in: Bull. Mus. Oceanograph. Monaco, W 28, 1905, p. 3. 

 Polycheles typhlops S. Kemp and R. B. Seymour Sewell, in : Records Indian Museum, Vol. 



VII, Part I, N" 2, Calcutta, 191 2, p. 24. 

 Polycheles typhlops C. M. Selbie, in: Fisheries, Ireland, Sci. Invest., 1914. I [1914], p. 12, 



PI. I, f^gs. 1-13. 

 Pentachelcs Agassizii A. Milne-Edwards, in: Bull. Museum Compar. Zoology, Vol. VIII, N'' i, 



Cambridge 1880, p. 65 (teste E. L. BOUVIER). 

 Polycheles Doderlemi G. Riggio, in: Naturalista Sicil. IV, 1884 — 85, p. 99, tav. Ill, 9. 

 Pentacheles Hextii A. Alcock, in: Annals Mag. Nat. Hist. Ser. 6, Vol. XIII, 1894, p. 237 



(teste S. Kemp and R. B. S. Sewell). 

 Pentacheles Hextii A. Alcock, A descriptive Catalogue Indian Deep-Sea Crustacea in the Indian 



Museum, Calcutta 1901, p. 172 '(teste S. Kemp and R. B. S. Sewell). 

 Polycheles intermedials H. Balss, in: Zoologischer Anzeiger, Bd. XLIV, N° 13, 1914, p- 599 ')■ 

 Illustrations of the Zoology of the Investigator, Crustacea, PL X, Fig. 2. 



i) In a letter, dated 28 October 1915, Dr. Balss wrote me about the identity of this species with Pot. typhlops., specimens 

 from Monaco of the latter having been compared by him with the type of Pol. intermedins. 



