Boone, Crustacea, Cruises of ''Eagle" and "Ara," 1921-28 129 



Lo Bianco, Hid., anno XI (suppl.), pp. 20-28, 1900. — Lo Bianco, 

 S., Mith. Zool. Stat. Neapel, vol. XV, pp. 149, 420, 422, 423, 

 435-37, 1902 ; lUd., vol. XVI, pp. 119-154 and p. 183 ; Pelagische 

 Tiefseefischerei der Maia in der Umgebung von Capri, Beitrage 

 zur Kentniss des Meeres und seiner Bewohner, Jena, pp. 29-31, pi. 

 IX, jSg. 37, 1904.— Calman, W. E., Ann. and Mag. Nat. Hist., ser. 

 7, vol. XI, p. 416, 1903. — Eiggio, G., Contributo alle carcinologia 

 del Mediterraneo, Natur. Sicil., vol. XVII, pp. 9-18, pi. 1, figs. 

 13-20, 1905.— Kemp, S. W., Fisheries Ireland, Sic. Invest., 1908, 

 p. 14, pi. 1, figs. 1-16, 1908. 



Gennadas hrevirostris E. L. Bouvier, C. R. Acad, des Sci., t. CXLI, 

 p. 748. 



Gennadas elegans E. L. Bouvier, C. R. Acad. Sci., t. CXL, p. 983; 

 Ihid., t. CXLI, p. 645, 1905 ; Ihid., t. CXLII, pp. 687-690 ; Ihid., 

 t. CXLII, p. 748, 1906 ; Bull. Mus. Oceanogr. de Monaco, No. 55, 

 Monaco, p. 3 ; Ihid., No. 80, pp. 2 et 9, figs. 6, 11 and 12, 1906 ; 

 Ihid., No. 93, p. 45, 1907 ; Revue gen. des Sciences, 17 e annee, 

 No. 11, p. 492, 1906, Paris; Res. Campag, Sci., Monaco, fasc. 

 XXXIII, p. 35, pi. 7, figs. 1-24, 1908. 



Gennadas elegans K. Stephensen, Rept. Danish Oceanog. Exped., 

 1908-10, p. 7, 1923 (with additional synonymy). 



Gennadas clavicarpus de Man. 



Plate 45. 



Type : Deposited in the Leyden Museum, 



Distribution : This species has hitherto been known only from the 

 26 specimens taken by the " 8ihoga" at seven stations in the Indo- 

 Pacific region, i.e., Celebes Sea, Banda Sea, Halmaheira Sea, Manipa 

 Strait, at depths varying from the surface 700 to 2000 meters. 



Material examined : Seven specimens dredged in 300 f ms., 7 miles 

 S. W. of Cape Malo, Panama. 



Technical description : Carapace 9 mm. long, from tip of rostrum 

 to posterior margin. Abdomen 21 mm. long ; the rostrum, which pro- 

 jects forward as far as the base of the cornea, is broadly triangular at 

 the base, with an acuminate tip, which points forward; the inferior 

 and superior margins of this tip are convergent and decidedly ciliated ;. 

 at the hinder of the upper end of the superior rostral margin there is 

 a strong rostral tooth placed 2 mm. behind the acuminate rostral tip ; 

 the rostral tooth points upward and the carapace is carinate in the 



