Excorallana oculata ( Hansen, 1890 )

Excorallana oculata ( Hansen, 1890) View in CoL

( Figs. 9 View Figure 9 , 10)

Corallana oculata Hansen, 1890: 386 View in CoL , fig. 6.

Excorallana oculata View in CoL . – Richardson, 1905: 152. – Carvacho and Yañez, 1971: 129. – Lemos de Castro and Lima, 1971: 139, fig. 4. – Coelho and Koening, 1972: 253. – Koening, 1972: 241. – Delaney, 1984: 3 and 15. – Guzman et. al., 1988: 77. – Kensley and Schotte, 1989: 163. – Stone and Heard, 1989: 208. – Delaney, 1989: 6. – Pires-Vanin, 1998: 611.

Material examined. 1 adult male, 1 adult female (drawn) ( MOUFPE 895 View Materials ), GM 193, Amapá , 03°37’00”N 50°01’00” W, 73 m depth GoogleMaps . 4 adult females, 3 sex undefined ( MOUFPE 891 View Materials ), GM 189, 03°50’00”N 49°55’00”W, 69 m depth GoogleMaps . 1 adult female ( MOUFPE 915 View Materials ), AS # 1913, Amapá , 03º59’00”N 49º35’00”W, 102 m depth GoogleMaps . 1 sex undefined ( MOUFPE 886 View Materials ), GM 22, Pará , 00°00’00”N 45°37’00”W, 65 m depth GoogleMaps . 2 adult females ( MOUFPE 906 View Materials ), AS # 1804 B, Pará , 00º24’00”N 48º10’00”W, 18 m depth GoogleMaps . 1 adult female ( MOUFPE 13.308 View Materials ), NE I 3252/ 7º P (REVIZEE), 00°37’05”N 45°40’05”W.1 sex undefined ( MOUFPE 13.341 View Materials ), NE I # 220/ 6ºP, Pará , 00°37’05”N 45°38’05”W GoogleMaps . 1 adult female ( MOUFPE 13.233 View Materials ), NE I # 220/6ºP (REVIZEE), Pará , 00°37’05”N 45°38’05”W GoogleMaps . 3 adult females ( MOUFPE 916 View Materials ), AS #1755, 00º37’30”N 45º38’30”W, 240 m depth GoogleMaps . 1 sex undefined ( MOUFPE 894 View Materials ), AS 2529, Pará , 01°02’00”N 47°11’05”W, 40 m depth GoogleMaps . 1 sex undefined ( MOUFPE 13.304 View Materials ),NE III # 93 3ª p REVIZEE ANTARES BENTOS, Pará , 01º37’48”S 38º10’12”W, 70 m depth GoogleMaps . 1 adult male (drawn) ( MOUFPE 13.339 View Materials ), REVIZEE NE III # 59 /2ºP, Pará , 01º 37’48”S 38º10’12”’W, 22 m depth . 1 adult female ( MOUFPE 921 View Materials ), AS # 1701, Pará , 01º57’00”S 37º46’00”W, 55 m depth GoogleMaps . 1 sex undefined ( MOUFPE 904 View Materials ), AS # 1967, Pará , 01º58’00”S, 37º46’00”W GoogleMaps . 1 adult female ( MOUFPE 888 View Materials ), AS # 1723, Ceará , 02º00’00”S 41º1’00”W, 82 m depth GoogleMaps . 1 adult female ( MOUFPE 885 View Materials ), PB 32 II, Paraíba , 07º39’30”S 34º47’00”W, 76 m depth GoogleMaps . 1 adult male ( MOUFPE 889 View Materials ), Fernando de Noronha , Pernambuco, 03º50’25”S 32° 24’41”W GoogleMaps . 1 juvenile female ( MOUFPE 887 View Materials ), ITA 74, Pernambuco , 07º41’00”S 34º47’00”W, 5.2 m depth GoogleMaps . 1 adult female ( MOUFPE 893 View Materials ), ITA 17, Pernambuco , 07º51’00”S 34º49’00”W, 3.9 m depth GoogleMaps . 1 sex undefined ( MOUFPE 913 View Materials ), REC 126, Pernambuco , 08º04’08”S 34º47’02”W, 22 m depth GoogleMaps . 3 sex undefined ( MOUFPE 900 View Materials ), CAN 23 BARCO 11 , Pernambuco , 08°14’05”S 34°53’04”W, 17.5 m depth GoogleMaps . 1 adult female ( MOUFPE 896 View Materials ), REC 140, Pernambuco , 08º19’09”S 34º53’05”W, 19 m depth GoogleMaps . 1 sex undefined ( MOUFPE 920 View Materials ), PE 6B, Pernambuco , 08º40’00”S 35º00’02”W, 19 m depth GoogleMaps . 1 sex undefined ( MOUFPE 901 View Materials ), REC 125, Pernambuco , 08º04’04”S 34º48’06”W, 18 m depth GoogleMaps . 1 sex undefined ( MOUFPE 897 View Materials ), REC 89, Pernambuco , 08º05’00”S 34º51’08”W, 9.5 m depth GoogleMaps . 1 sex undefined ( MOUFPE 911 View Materials ), CAN 80, Pernambuco , 08°09’07”S 34°53’00”W, 12.5 m depth GoogleMaps . 1 adult male ( MOUFPE 907 View Materials ), REC 97, Pernambuco , 08º16’00”S 34º55’00”W, 11 m depth GoogleMaps . 1 adult female ( MOUFPE 909 View Materials ), CAN 48, Pernambuco , 08°12’08”S 34°52’03”W, 13.5 m depth GoogleMaps . 2 adult females ( MOUFPE 910 View Materials ), CAN # 17, Pernambuco , 08°14’05”S, 34°50’06”W, 27 m depth GoogleMaps . 1 sex undefined ( MOUFPE 152 View Materials ), CAN 19, Pernambuco , 08°16’01”S 34°16’01”W, 23 m depth GoogleMaps . 1 adult female ( MOUFPE 899 View Materials ), CAN 25, Pernambuco , 8°16’09”S 34°53’07”W, 19.5 m depth GoogleMaps . 1 sex undefined( MOUFPE 903 View Materials ), AKA# 49, Alagoas , 9º37’00”S 35º30’40”W, 23 m depth GoogleMaps . 1 sex undefined ( MOUFPE 902 View Materials ), AKA# 58, Alagoas , 9º46’10”S 35º29’40”W, 41 m depth GoogleMaps . 1 adult female ( MOUFPE 905 View Materials ), AKA # 59, Alagoas , 9º46’10”S 35º34’40”W, 31 m depth GoogleMaps .

Diagnosis [modified from Hansen (1890)]. Head without tubercles, with very large and continuous eyes, except for small anterior area. Frontal lamina approximately 3x longer than wide, narrower in the middle, apex rounded ( Fig. 17 View Figure 17 ). Antennular peduncle with article 1 not dilated. Antenna reaching pereonite 3. Pereonites 1–4 dorsally smooth, 5–7 with one line of tubercles on posterior margin. Pleon with longitudinal groove bearing tubercles. Pleonite 1 dorsally smooth. Pleonite 2 with transversal tubercles on posterior margin. Pleonites 3, 4 with double line of small tubercles. Pleotelson triangular, with lateral incision, anterior margin with six tubercles arranged in two groups (3-3) separated by one groove; lateral margins heavily coated with long setae, apex slightly rounded. Uropods margins heavily coated with setae, reaching apex of pleotelson.

Remarks. Two variations were observed regarding the number of tubercles on the pleotelson. According to Hansen (1890), two tubercles are present on the anterior margin of the pleotelson. In the material examined, some specimens had four tubercles, two on each side of the midline, and some had six tubercles, three on each side of the midline. Moreover, some adult specimens of the same size had tubercles that were less developed ( Fig. 9 View Figure 9 ).

Geographical distribution. Caribbean Sea: Bahamas, Cuba, Puerto Rico; Barbados; Brazil: Amapá, Par á, Maranhão, Piauí, Ceará, Paraíba, Pernambuco, Alagoas, Bahia, Espírito Santo ( Hansen, 1890;

Richardson, 1905; Lemos de Castro, 1971; Coelho and Koening, 1972; Koening, 1972; Kensley and Schotte, 1989; this study) ( Fig. 10).

Depth range: 39–240 m.