LOVENIA CORDIFORMIS. 255 



not been found in elongata by either Doderlein or Koehler. The number of 

 valves ranges from 4 to 8 and they range in length from .60 to 1.25 mm.; these 

 pedicellariae often have a neck longer than the valves but as this appears to be 

 very contractile, many examples seem to have no neck at all. When there are 

 only four valves they differ little in form from those of the normal tridentate 

 pedicellariae but when there are seven or eight, the base becomes compressed 

 and elongated and markedly gibbous at the bottom, while the blade has a con- 

 spicuous constriction where it joins the base; the blade is widest just distal to 

 this constriction and tapers thence very gradually to a pointed tip, which is 

 bent inward more or less noticeably; the blades are sometimes distinctly 

 curved but except for the tip are generally nearly straight. These pedicellariae 

 occur about the peristome and along the sides of the ventral ambulacra. 



This Lovenia occurs along the western coast of tropical and subtropical 

 America from San Diego to Guayaquil. The following are the places where 

 the Albatross collected it; nearly all the specimens are bare tests and quite 

 small. Of one of these the three photographic figures (PL 161, figs. 10-12) 

 show the sutures beautifully. 



Station 2796. Gulf of Panama. Bott. temp, about 64°. 33 fms. Gy. s., 

 brk. sh. 



Station 2813. Southwest of Chatham Island, Galapagos. Bott. temp.? 

 40 fms. Co. s. 



Station 2822. Near La Paz, Lower California. Bott. temp.? 21 fms. 

 Gy. s., brk. sh. 



Station 2823. Near La Paz, Lower California. Bott. temp.? 26.5 fms. 

 Brk. sh. 



Station 2826. Off Ceralbo Island, Lower California. Bott. temp.? 9.5 

 fms. Sh. 



Station 2827. Off Ceralbo Island, Lower Calif ornia. Bott. temp.? 10 

 fms. Sh. 



Station 2964. Near Santa Barbara, California. Bott. temp.? 21.5 fms. 

 S., st. 



Station 2994. Near Revillagigedo Islands. Bott. temp. 66.6°. 54 fms. 

 Brk. co. t, 



Station 3012. Near Santa Ines Bay, Lower California. Bott. temp. 63°. 

 22 fms. Fne. gy. s. 



Station 3013. Near Santa Ines Bay, Lower California. Bott. temp. 65°. 

 14 fms. Gy. s., brk. sh. 



