legs blue; telson and uropods white at base 

 blotched and bordered with yellow. 



Habitat. — Lives in holes and crevices in shell 

 bars, stones, and dead corals; water's edge to 

 23 fathoms. 



Type locality. — Key West, Fla. 



Known range. — Near Beaufort, N.C., through 

 West Indies to Santos, Sao Paulo, Brazil; Ber- 

 muda. 



Remarks. — Ovigerous females have been taken 

 off Venezuela in April, Beaufort, N.C., in July, 

 Bimini in October, and Santos, Brazil, in June. 

 Manter (1934) found metacercariae of Heli- 

 cometrina nimia encysted in muscles of A. for- 

 mosus at Tortugas. 



Alpheus normanni Kingsley. Green snapping shrimp 

 Figure 53 



Alpheus a/finis Kingsley, 187Sa, p. 195. 



Alpheus normanni Kingsley, 1878b, p. 93. 



Alpheus packardii Kingsley, 1880, p. 417. — Verrill, 1922, p. 

 80, pi. 20, figs. 2-5 ; pi. 21, fig. 5 ; pi. 22, fig. 7 ; pi. 23. figs. 6, 

 c-d ; pi. 25, figs. 4, a, b ; pi. 31, figs. 1, b-1, 2, b-u, 3, u, t (rev.). 



Crangon packardii: Hay and Shore, 1918, p. 385. pi. 26, fig. 

 4. — Sehmitt, 1035a, p. 144. 



Recognition characters. — Rostrum with carina 

 extending as far back as base of eyestalks, spini- 

 form tip not reaching to base of second article 

 of antennule. Carapace about two-thirds length of 

 abdomen, somewhat compressed; cervical groove 

 hardly evident; front with ocular hoods pro- 

 duced into an obtuse angle above each eye; an- 

 terior margin emarginate below ocular hoods. 

 Eyes well developed but completely covered by 

 carapace. Stylocerite scalelike with spiniform tip 

 reaching about to end of basal article of anten- 

 ule; third article much shorter than second; inner 

 antennular flagellum slender, outer one shorter 

 with proximal four-fifths enlarged. Antennae a 

 little longer than body, slender; antennal scale 

 reaching a little beyond end of antennular pedun- 

 cle, lateral margin slightly sinuous with strong 

 terminal spine separated from and exceeding 

 lamella; a strong ventral spine (basicerite) near 

 base of scale. Third maxillipeds slender, not 

 reaching tip of antennal scale; terminal article 

 with long hairs. 



First legs strongly developed with chelae un- 

 equal. Larger leg broad and flattened; slightly 

 sinuate along inner margin; outer margin with a 

 longitudinal groove above and below, a ridge 



Figure 53. — Alpheus normanni Kingsley. A. anterior por- 

 tion of body in dorsal view; B, large chela in ventro- 

 lateral view ; 5 mm. indicated. 



between grooves ending in a strong tooth behind 

 base of dactyl ; dactyl heavy, curved, toothed at 

 base. Smaller chela about half as wide and three- 

 fourths as long as larger one; similarly formed 

 but with a sharp spine above (and a small one 

 below in males) at base of dactyl; no basal tooth 

 on dactyl; sexually dimorphic ringers in males 

 broad externally but with keeled, closely fitting 

 opposed edges fringed by dense hairs; females 

 with hand a bit hairy but fingers unornamented ; 

 carpus of both legs short, broad, irregularly cup 

 shaped, merus with a spiniform tooth near distal 

 end and one or two spines below, distal end cupped 

 to receive carpus with leg extended. Second legs 

 very slender, weakly chelate; with carpus sub- 

 divided, joints diminishing in length as follows 

 (numbered from proximal end) : 2, 1, 5, 3-4. 

 Third to fifth legs with dactyls simple. 



Abdomen somewhat compressed. Telson with 

 sides slightly convergent distally; two pairs of 

 dorsal spines, first pair at one-third, second at 



MARINE DECAPOD CRUSTACEANS OF THE CAROLINAS 



65 



