RECENT OPHIURANS. 265 



equals or is less than the joint; on two or three basal joints there may be 5 (on 

 one joint 6) spines, and then the longest is the third or foxirth from the top; 

 distally there are 4 spines nearly to tip of arm. Tentacle-scale 1, big and 

 round. Color (dried from alcohol), dull yellowish brown. 



HoLOTTPE (M. C. Z. 1225) and 1 paratype (M. C. Z. 3926). Philippine 

 Islands, 6-35 fms. Semper collection, no. 36. 



Mr. Lyman had labeled these specimens "Amphiuroid = Ophiactis!" 

 but left no notes or sketches with them. The smaller specimen is only 4 mm. 

 across the disk but the arms are about 30 mm. long. The upper arm-plates 

 are not as excessively short as in the larger individual but in other details the 

 specimens agree well. Even in this smaller specimen, there are 4 arm-spines 

 on each side arm-plate nearly to tip of arm. This marked uniforirdty in the 

 number of arm-spines, combined with the naked skin of the lower surface of disk, 

 the shape of the arm-plates and the peculiar oral shields and adoral plates, serve 

 to distinguish this species even in this perplexing genus. 



767. 0. RESILIENS Lyman, 1879. Bull. M. C. Z., 6, p. 36, pi. 13, t. 362-364. 



18 specimens. New South Wales: off Coogee, 49-50 fms.; Jervis Bay, 

 10-11 fms. ; Port Jackson, 1-10 fms. Australia: Bass Strait. 



768. 0. SAVIGNYI (Muller and Teoschel). 



Ophiolepis samgnyi Muller and Tboschel, 1842. Syst. Ast., p. 9.5. 



Ophiactis samgnyi Ljungma^j, 1867. Ofv. Kongl. Vet.-akad. Forh., 23, p. 323. Lutken, 1859. 

 Add. ad hist. Oph., pt. 2, pi 3, f. 7a-b (as 0. reinhardtii) . 



1797 specimens, including 1 cotype of Ophiactis incisa von Martens. Zanzi- 

 bar. Mauritius. Ceylon. Singapore. Philippine Islands * : Cebu, Bantayan 

 Reef. Pelew Islands. Torres Strait : Badu; Thursday Island; Friday Island; 

 Erub; Murray Islands, Mer. Fiji Islands: Viwa. Society Islands. Hawaiian 

 Islands': Oahu, Pearl Harbor. California: San Diego. Lower California: 

 Cape St. Lucas. Mexico: Mazatlan. Panama: Pearl Islands. Florida^: west 

 of Tortugas, 37 fms.; Key West; Cape Florida; Miami. Bahamas. Jamaica: 

 Montego Bay; Port Henderson; Port Royal. West Indies ': St. Cruz, D. W. I., 

 Flannegan's Passage, 27 fms. St. Thomas, D. W. I. Bermuda': Harrington 

 Sound. 



769. O. SIMPLEX (Leconte). Plate 10, f. 5, 6. 

 Ophiolepis simplex Leconte, 1851. Proc. Acad. nat. sci. Phil., 5, p. 318. 



Ophiactis simplex Lutken, 1859. Add. ad hist. Oph., pt. 2, p. 130. 



2 specimens, including 1 cotype. Panama. Mexico: Magdalena Bay. 



' Without definite locality. 



