278 THE VOYAGE OF H.M.S. CHALLENGER. 



beyond two, whereof the inner and larger is cylindrical, with a somewhat swollen, rough 

 end, and attains, about two-thirds out on arm, a length of 1 '3 mm. At the tip the 

 lower scale takes on the form of a flattened compound hook, with four teeth curved on its 

 edge. Colour in alcohol, very pale brown. 



Station 170.— July 14, 1874 ; lat. 29° 55' S. and lat. 29° 45' S., long. 178° 14' W. 

 and long. 178° 11' W. ; 520 fathoms. 



Species of Astroschema not herein described. 

 Astroschema oligactes, Ltk. (PL XLIV. figs. 1-5). 



Astroschema oligactes, Vid. Meddel., p. 16, 1856 ; Addit. ad Hist, part 2, p. 155, pi. v. fig. 3 ; 

 Duj. & Hup.5, Hist. Nat. Zooph. Echin., 1862, p. 297 ; Lym., 111. Cat. Mus. Conip. 

 Zool., No. viii., part 2, p. 26. 

 Asterias oligactes, Pallas, Acad. Caes. Leop. Nova Acta, vol. ii. p. 239, pi. vi. fig. 23. 

 West Indies ; 69 to 288 fathoms. 



Astroschema arenosum, Lym., Bull. Mus. Comp. Zool., vol. v., part 9, p. 235, pi. iii. 

 figs. 62-64, 1878. 



West Indies ; 805 fathoms. 



Astroschema tenue, Lym., 111. Cat. Mus. Comp. Zool, No. viii., part 2, p. 26, 1875. 

 Barbadoes; 100 fathoms. 



Astroschema lasve, Lym., 111. Cat. Mus. Comp. Zool., No. viii., part 2, p. 26, 1875 ; 

 Bull. Mus. Comp. Zool., vol. v., part 9, p. 236. 



Asteromorpha Icevis, Lym., Ann. Sci. Nat., p. 3, 1872. 



Guadeloupe, West Indies. 

 Astroschema steenstrupii, Lym., 111. Cat. Mus. Comp. Zool, No. viii., pt. 2, p. 26, 1875. 



Asteroschema Rousseaui, Michetin, Notes sur l'He de la Reunion, Annex A, p. 6, 1863. (No 



proper description.) 

 Asteromorpha Steenstrupii, Ltk., Addit. ad Hist., part 3, p. 62, 1869 ; Lym., Ann. des Sci. 



Nat., p. 4, 1872. 

 lie de la Reunion. 



Astroschema sulcatum, Ljn., Dr. Goes, Oph. Of. Kong. Akad., p. 637, 1871 ; Lym., 

 111. Cat. Mus. Comp. Zool., No. viii., part 2, p. 26. 

 Anguilla, West Indies ; 200 to 320 fathoms. 



Astroschema intectum, Lym., Bull. Mus. Comp. Zool., vol. v., part 9, p. 235, pi. iii. 

 figs. 59-61, 1878. 



Off Havana; 175 fathoms. 



