Heldt described cleavage stages of the egg, for- 

 mation of the embryo, 8 naupliar, 3 protozoeal, 

 14 mysis stages, and the first postlarval stage. 

 Pearson found protozoeal, mysis, and postlarval 

 stages principally during July off South West 

 Pass, La. ; and usually a complete set of larval 

 stages was taken in a single plankton collection. 

 A single mysis was taken south of Barataria Pass, 

 La., in May and a single first protozoea at Fort 

 Pierce, Fla., in January. 



Genus Penaeopsis Bate, 1881 



Bate, 1881, p. 182. 



Penaeopsis goodei (Smith) 



Figures 16-17 



Parapenaeus goodei Smith, 1885, p. 176. 



Penaeopsis goodei: Verrill, 1922, p. 44, pi. 15, figs. lA-lAiv ; 



pi. 16, fig. 3. — Burkenroad, 1934a, p. 15, figs. 2, 3 (rev.). 



Recognition characters. — Carapace and abdo- 

 men covered with rather stiff, plumose hairs. 

 Carapace about as wide as deep and very little 

 compressed anteriorly. Rostrum rising obliquely 

 above level of dorsum, shorter than carapace 

 proper and armed above with 8 to 10 teeth in 

 front of orbital margin; a sharp gastric tooth 

 behind rostral carina. Antennal, hepatic, and 

 branchiostegal spines well developed; a rec- 

 tangular toothlike eminence at orbital angle; 

 grooves inconspicuous. Eyes large, reniform, 

 flattened above. Antennular flagella subequal in 

 length and about as long as second article of 

 peduncle. Antennal scale reaching to tip of 

 antennular peduncle; distal portion of thickened 

 outer margin armed above with series of minute 

 spines directed obliquely forward and outward. 



Third maxilliped, first and second legs armed 

 with basal spines. A small distal spine on ventral 

 side of ischium of first leg. A pair of long, slen- 

 der spines arising from sternum between second 

 legs. 



Figure 16. — Penaeopsis goodei (Smith). Anterior por- 

 tion of animal in lateral view. 



Figure 17. — Penaeopsis goodei (Smith). A, petasma of 

 male in ventral view, approximately X 9-5 ; B, petasma 

 in ventral view, distal portion with right external piece 

 removed, approximately X 1-t (after Bnrkenroad, 

 1034a). 



Thelycumof female composed of an anterior flat- 

 tened oval portion with a slender anterior median 

 spine on 13th somite (between 4th leg), and a short 

 broad, posterior portion on 14th somite connected 

 to preceding structure by a less elevated median 

 prominence flanked by an irregular bulbous en- 

 largement on each side. Petasma of male exceed- 

 ingly complicated and asymmetrical; left side 

 irregularly folded longitudinally, projecting 

 proximally in a curved process beyond right half 

 and to right of median line, and extending dis- 

 tally in an irregular process; right side enlarged 

 distally and divided into several irregularly 

 curved processes projecting beyond left appen- 

 dage, and partially covered posteriorly by a thin 

 spoon-shaped lamella arising at their bases. 



Abdomen with third to sixth segments carinate 

 dorsally ; carina of fourth and fifth narrowly cleft 

 at posterior margin. Telson considerably longer 

 than sixth segment; rounded and obscurely 

 grooved above; regularly tapered; armed with a 

 long spiniform process at each side of acute tip, 

 and three pairs of movably articulated spines in 

 front of lateral spines, posterior ones largest. 



Measurements. — Length of carapace including 

 rostrum : male, 19 mm. ; female, 21 mm. 



Habitat. — Surface to 180 fathoms. 



Type locality. — Bermuda. 



MARINE DECAPOD CRUSTACEANS OF THE CAROLINAS 



29 



