156 



I. PETRESCU 



articles, basis shorter than half of pereopod, carpus longest article 

 of pereopod excepting basis, dactylus with a long curved apical seta. 

 Pereopod 4 (Fig. 6 I), similar to the previous pair. Pereopod 5 (Fig. 

 6 J) with the smallest basis of all pereopods and with carpus longer 

 than in the pairs 3 and 5. 



Remarks. Pereopod 1 (Fig. 6 F) has a basis with two teeth on 

 outer margin (absent in description given in Jones 1984). Pereopod 

 2 (Fig. 6 G) has a shorter dactylus than is suggested in the original 

 description. 



Styloptocuma antipai Bacescu & Muradian, 1 974 



Fig. 7 



Styloptocuma antipai Bacescu & Muradian, 1974: 74-75. 

 Cumella antipai Jones, 1984: 214. 

 Cumella (Styloptocuma) antipai Watling, 1991: 752 

 Styloptocuma antipai Bacescu, 1992: 262. 



DESCRIPTION. The description of an immature male including the 

 mouth appendages is given. Mandible (Fig. 7 A) as in S. acuminatum. 

 Maxilla 1 (Fig. 7 B) with glabrous filaments. Maxilla 2 (Fig. 7 C) as 

 in S. acuminatum. Maxilliped 1 (Fig. 7 D) with hand-like flattened 

 setae on carpus (different form than in S. acuminatum), rounded and 

 enlarged dactylus. Maxilliped 3 (Fig. 7 E) as in female described by 

 Bacescu & Muradian (1974). Pereopod 1 (Fig. 7 F), with carpus as 

 long as propodus instead of carpus shorter than propodus of female 

 (as given in Bacescu & Muradian 1974 and Jones 1984). Pereopod 

 2 (Fig. 7 G), as in female, but with glabrous margins of basis and 

 dactylus with a shorter terminal seta. Pereopod 3 (Fig. 7 H), basis 

 half of pereopod, dactylus with a terminal strong curved claw. 

 Pereopods 1-4 with exopods. Uropod (Fig. 7 I), peduncle 2 times 

 longer than the last pleonite, 1 .5 times longer than its rami, inner 

 margin serrated; subequal rami, exopod with simple setae on both 

 margins and a long terminal one, endopod with three acuminate 

 setae on inner margin and a terminal robust acuminate seta a little 

 shorter than on exopod. 



Styloptocuma bishopi (Jones, 1984) 



Figs 8, 9 



Cumella bishopi Jones, 1984: 233. 



Cumella (Styloptocuma) bishopi Watling, 1991: 752 



Styloptocuma bishopi Bacescu, 1992: 263. 



Description. A description of immature male is given. Antenna 



1 (Fig. 8 A), 1 st article of peduncle shorter than remaining articles, 

 2 nd article with a tubercle with pedunculate setae. Mandible (Fig. 8 

 B), pars incisiva with 4 teeth, robust lacinia mobilis with 3 teeth, 

 truncated pars molaris. Maxilla 1 (Fig. 8 C), as in 5. antipai, with 

 glabrous filaments. Maxilla 2 (Fig. 8 D), with a row of fine, small 

 setae between endites and outer margin of protopod. Maxilliped 1 

 (Fig. 8 E), endite of basis with 2 spatulate setae, carpus with hand- 

 like flattened setae with 6 denticles, rounded dactylus. Maxilliped 2 

 (Fig. 8 F), as usual for the genus. Maxilliped 3 (Fig. 8 G), basis and 

 merus without teeth. Pereopod 1 (Fig. 8 H), as in female. Pereopod 



2 (Fig. 8 I), as in female, with larger basis. Pereopod 3 (Fig. 9 A), 

 basis half of pereopod, carpus 2 times longer than propodus. Pereopod 

 4 (Fig. 9 B), basis shorter than half of pereopod, carpus 3 times 

 longer than propodus. Pereopod 5 (Fig. 9 C), slender articles, carpus 

 3.8 times longer than propodus. 



The description in Jones (1984) is augmented with the following 

 details: Pereopod 3 (Fig. 9 G), basis half of pereopod, with serrated 

 outer margin, carpus/propodus = 1.6, dactylus with a short curved 



claw. Pereopod 4 (Fig. 9 H), basis shorter than half of pereopod, with 

 a serrated outer margin, longer carpus (carpus/propodus = 2.5). 

 Pereopod 5 (Fig. 9 I), basis shorter than half of pereopod, with 

 serrated outer margin, carpus longer than in the pairs 3 and 4 (carpus 

 /propodus= 2.8). 



Remarks. Differences noted in specimens examined for this study 

 include: maxilliped 3 (Fig. 9 D) with a tooth on inner margin of 

 merus, pereopod 1 (Fig. 9 E) with teeth also on the outer margin, 

 carpus longer than propodus (versus carpus shorter than propodus), 

 pereopod 2 (Fig. 9 F), with 2 stiff acuminate setae on outer distal 

 corner of carpus (instead of simple setae). 



Styloptocuma dayae (Jones, 1984) 



Figs 10, 11 



Cumella dayae Jones, 1984: 226-227. 



Cumella (Styloptocuma) dayae Watling, 1991: 752. 



Styloptocuma dayae Bacescu, 1992: 263 



Description. The description of the female is supplemented with 

 additional data on antenna 1 , mouthpieces and maxillipeds 1 , 2 and 

 pereopods 3-5. Antenna 1 (Fig. 10 A), 2 nd article of peduncle with a 

 short tubercle. Mandible (Fig. 10 B), pars incisiva with 4 teeth (one 

 of them is very short), strong lacinia mobilis with 3 teeth. Maxilla 1 

 (Fig. 10 C), protopod with robust acuminate setae and palp with 2 

 glabrous filaments. Maxilla 2 (Fig. 10 D), no row of fine, small setae 

 between endites and outer margin of protopod. Maxilliped 1 (Fig. 10 

 E), carpus with hand-like flattened setae with 4 denticles, rounded 

 and enlarged dactylus. Maxilliped 2 (Fig. 10 F), as usual for the 

 genus. Pereopod 3 (Fig. 10 G), basis longer than half of pereopod, 

 tiny dactylus with a long terminal seta. Pereopod 4 (Fig. 10 H), basis 

 shorter than half of pereopod, carpus shorter than in the previous 

 pair. Pereopod 5 (Fig. 10 I), basis shorter than half of pereopod, 

 carpus longer than in pairs 3 and 4. 



Some details on the structure of the immature male are also 

 provided. Maxilliped 3 (Fig. 1 1 A), basis without the short process 

 mentioned by Jones for the female. Pereopods 1 and 2 (Fig. 1 1 B, C), 

 as in female. Pereopod 3 (Fig. 1 1 D), basis half of pereopod, carpus/ 

 propodus: 1.8, tiny dactylus with long terminal seta. Pereopod 4 

 (Fig. 1 1 E), basis shorter than half of pereopod, carpus/propodus: 

 1.7. Pereopod 5 (Fig. 11 F), basis shorter than carpus, carpus/ 

 propodus: 3.1. 



Styloptocuma echinatum (Jones, 1984) 



Figs 12, 13 



Cumella echinata Jones, 1984: 223-224. 



Cumella (Styloptocuma) echinata Watling, 1991: 752. 



Styloptocuma echinatum Bacescu, 1992: 263. 



Description. This species was incompletely described in Jones 

 (1984), his description being based only the female. Additional 

 details for immature males and females are included here. Immature 

 male - Antenna 1 (Fig. 12 A), 1 st article of peduncle twice longer 

 than the rest of antenna, 2 nd article with a tubercle. Mandible (Fig. 13 

 B), pars incisiva with 4 teeth, lacinia mobilis also with 4 teeth (one 

 of them very short). Maxilla 1 (Fig. 13 C), palp with 2 glabrous 

 filaments. Maxilla 2 (Fig. 13 D), long fine setae on outer margin of 

 protopod, but not between its outer margin and endites. Maxilliped 

 1 (Fig. 13 E), carpus with hand-like flattened setae with 4 denticles, 

 rounded and enlarged dactylus. Maxilliped 2 (Fig. 1 3 F), as usual for 

 the genus. Maxilliped 3 (Fig. 13 G), basis without inner process, 

 dactylus with 2 claws. Pereopod 1 (Fig. 13 H), basis with rows of 



