MUSEUM OF COMPARATIVE ZOOLOGY. 243 



Station 101, Morro Light, 175-250 fathoms. Station 130, Frederickstadt, 

 451 fathoms. Station 13(5, Frederickstadt, 508 fathoms. Station 137, Fred- 

 erickstadt, 625 fathoms. Station 148, St. Kitts, 208 fiithoms. Station IGl, 

 Guadeloupe, 583 fathoms. Station 162, Guadeloupe, 734 fathoms. Station 

 163, Guadeloupe, 769 fathoms. Station 173, Guadeloupe, 734 fathoms. Sta- 

 tion 174, Guadeloupe, 878 fathoms. Station 175, Dominica, 608 fathoms. 

 Station 179, Dominica, 824 fathoms. Station 185, Dominica, 333 fathoms. 

 Station 188, Dominica, 372 fathoms. Station 200, Martinique, 472 fath- 

 oms. StatioiT 208, Martini(|ue, 213 fathoms. Station 221, St. Lucia, 423 

 fathoms. Station 226, St. Vincent, 424 fathoms. Station 227, St. Vincent, 

 673 fathoms. Station 228, St. Vincent, 785 fathoms. Station 230, St. Vin- 

 cent, 464 fathoms. Station 239, Grenadines, 338 fathoms. Station 257, 

 Grenada, 553 fathoms. Station 260, Grenada, 291 fathoms. Station 264, Gre- 

 nada, 416 fathoms. Station 265, Grenada, 576 fathoms. 



Ophioglypha irrorata? Ltm. 



The specimens seemed just the same as those from Station 164 of the 

 "Challenger" (Bull. M. C. Z., V., No. 7, p. Y4). They differed from those 

 from the coast of Portugal, called 0. irrorata (?) in the postscript to mj' 

 Challenger Ophiuroidea (p. 381), in having three arm-spines set close together, 

 whereas the latter had two below, and one separated and higher up ; while 

 farther out they wei'e close together, and the middle one had the form of a 

 blunt hook. 



Station 140, Virgen Gorda, 1,097 fathoms. Station 245, Grenada, 1,058 

 fathoms. 



Ophioglypha convexa 1 Lym. 



Plate IV. Figs. 40-45. 



Most of the specimens differ so much, from 0. convexa as to appear like an- 

 other species. The six primary plates, extremely swollen, form an elevated 

 rosette, overhanging very small radial shields, not so large as the head of the 

 genital scale. The mouth-shield, too, occupies the whole of the lower inter- 

 brachial space (fig. 43). But specimens from Station 148 were intermediate, or 

 rather differed from the typical form only in finer arm-comb papillae and more 

 interbrachial scales on the disk margin. It will be necessary to await further 

 dredgings before deciding the specific limits. It is to be noted as an impor- 

 tant difference, that, while the typical 0. convexa is found in 2,350 fathoms, 

 this species does not go below 240 fathoms. 



Station 145, St Kitts, 270 fathoms. Station 157, jMontserrat, 120 fathoms. 

 Station 158, Montserrat, 148 fathoms. Station 220, St. Lucia, 116 fathoms. 

 Station 224, St. Vincent, 114 fathoms. 



