174 Addison E. Verrill, 



more enlarged; in", second maxilliped ; t, telson ; u, uropods ; id, 

 n'", third maxilliped; id' x , its tip, more enlarged; ip, pleopod. 

 Figure 2. The same; female; 2p, pleopod; o, o', eggs containing larvae; 

 x 16. By A. H. V. 



PLATE XXXIX. 



Figure I. Synalpheus fritzmulleri, carolinensis Ver. From Fort Macon, 

 N. C, No. 1831; la, smaller chela; ia', the same; fingers more 

 enlarged; ib, leg of second pair; ib', chela of the same, more 

 enlarged; ic, leg of third pair; ic', tip and dactyl of the same, more 

 enlarged; id, leg of fifth pair; id', dactyl of same, more enlarged. 

 See also pi. xxiii, fig. 6. By A. H. V. 



Figure 2. Synalpheus hemphilli longicornis. From Bermuda. After 

 Coutiere; 2a, frontal parts; 2b, dactyl of a leg of third pair. 



Figure 3. S. fritzmulleri, caribea Ver. Dominica I. 33, third maxilliped ; 

 3a', tip more enlarged ; b, leg of second pair ; 3b', its chela more 

 enlarged ; 3c, leg of third pair ; 3c', dactyl more enlarged. By A. H. V. 



Figure 4. S. goodei. Type. After Coutiere; 4, frontal parts of female; 

 43, large chela of male ; 4b, smaller chela ; 4c, telson ; 4d, outer 

 lamella of uropods. 



PLATE XL. 



Figure i. Synalpheus hemphilli. From Bermuda (ddd) ; i, frontal parts ; 

 la, ia', third maxilliped; ic, ic', leg of second pair and chela more 

 enlarged; id, id', leg of third pair and dactyl more enlarged. 



Figure 2. Synalpheus goodei. From Bermuda ; 2a, antennule ; 2b, base 

 of antenna ; 2c, smaller chela and leg of first pair ; 2d, leg of second 

 pair ; 2e, 2e', leg of third pair and its dactyl more enlarged ; 2f, telson 

 and uropods; x about 16. From slide bb. All by A. H. Verrill. 



PLATE XLI. 



Figure I. Thor floridanus. General, side view. 

 Figure 2. Periclemenes americanus. General, side view. 

 Figure 3. Gnathophyllum americanum. General, side view. 

 Figure 4. Processa canaliculata bermudensis. General, side view. 

 Figures. Alphaus .bahamcnsis ; dactyl of large chela. All enlarged from 

 Bermuda specimens by A. H. V. 



PLATE XLII. 



Figure i. Tozeuma carolinensis. Female from Bermuda, 1901 ; a' stalk 

 of antennule; a", antenna; s, scaphocerite; be, basicerite, c, acicle of 

 antennule; e, eye; o, ocellus, x 6. 



Figure ia. Leg of first pair, left side, x 12. 



Figure ib. Leg of second pair, x 14. 



