A. Buccal membrane with seve?i projections, the margins of which are 

 usually armed with suckers. 



* Shell pennate, wings icith convex margins. 

 L. BREVIPINNA, Lesueiir. 1*1. 51. figs. 128-lo0. 



The very uarroAV fins form the principal character of this 

 species ; but I have seen specimens wiiich apparently connect it 

 with L. Pealii, Lesuenr. It is considered by several good 

 anthorities to = L. brevis. VA.. bnt that s])ecies is ninch more 

 closely allied to the typical L. Pealii. If the whole gronp of 

 American species be united into one, L. Pealii will have priority 

 over all other names. L. hrempinna is common on the southern 

 Atlantic coast of the United States. It has been captured as 

 far north as Delaware Bay. 



L. HEMIPTERA. IIowcll. PL 51. figS. 181, 132. 



The type sij^cimen is small and exhibits various evidences of 

 juvenility. There is a ditference of form in the gladius, and it 

 may be distinct from the above. Howell says that it is not 



found north of the coral reefs. 



Florida _ Gulf of Mexico. 



L. BBEVis, Blainv. Tl. 52. figs. 143, 144. 



Distinguished l)y its sliort. nearly rounded fins. The figure 

 rei)resents a tyi)ical individual, and it appears to have better 

 developed fins than L. hrevvpinna^ and to differ from L. Pealii 

 by these being rounded in outline instead of rhomboidal; but I 

 have examined specimens in which the form of fins is inter- 

 mediate, so that it is very difficult to place them. 



Brazil. 



L. i'EAi.ii. LcsiuMir. PI. 51, figs. 133-140. 



The fins in tyi)ical forms are rounded rhomboidal, well devel- 

 oped; the body is rather short, stout; the skin is beautifully 

 punctate with close red spots which are crowded along the back. 

 The curious dentition of the cups of the sessile and tentacular 

 arms is shown by our figures. Yerrill has figured the develop- 

 ment of this species in Report of U. S. Fish Commissioner for 

 1873. He says that numbers of the free-swimming young of 

 this species were often found in the stomach of the red jelly-fish. 



