Early Life History of the Oyster Crab, Pinnotheres Ostreum (Say)

Larval development of Austinixa bragantina (Crustacea: Brachyura: Pinnotheridae) reared in the laboratory

“…These spines appear to be unique for A. bragantina and P. gracilipes, as they are not present in closely-related species, such as P. longipes by BOUSQUETTE (1980) and P. rathbuni by SEKIGUCHI (1978). Other changes include the increase in the number of setae in the feeding appendages, the appearance of the endopod in the antenna and antennule and appearance of the pleopods and pereiopods starting from the 4 th zoea, which are similar to those observed in other pinnotherids larvae (SANDOZ & HOPKINS 1947, SEKIGUCHI 1978, BOUSQUETTE 1980. The number of zoeal stages was similar in A. bragantina, P. rathbuni, P. longipes and P. gracilipes.…”

“…The cara- SANDOZ & HOPKINS (1947) with carapace longer than wide. The small triangular rostrum observed in A. bragantina was similar to the reported for P. gracilipes and clearly different of C. stebbingi (MARQUES & POHLE 1996b) with long and spine form rostrum, D. crinitichelis (POHLE & TELFORD 1981) with small and sub-triangular rostrum, T. maculatus (COSTLOW & BOOKHOUT 1966) with rostrum terminates as two rounded lateral and one slightly larger, median projection.…”

“…The small triangular rostrum observed in A. bragantina was similar to the reported for P. gracilipes and clearly different of C. stebbingi (MARQUES & POHLE 1996b) with long and spine form rostrum, D. crinitichelis (POHLE & TELFORD 1981) with small and sub-triangular rostrum, T. maculatus (COSTLOW & BOOKHOUT 1966) with rostrum terminates as two rounded lateral and one slightly larger, median projection. The rostrum in Z. ostreum (SANDOZ & HOPKINS 1947) is represented by two small lobes, covered by small setae. The megalopal stage of A. bragantina and T. maculatus are more easily identified among pinnotherids crabs from Brazil.…”

PRESIDENTIAL ADDRESS:*FLAVOR BUDS AND OTHER DELIGHTS

“…This delicacy from the oyster occurs abundantly in the highsalinity water where hosts are submerged longer along the Atlantic coast, with infestations ranging from 1 to 80% and averaging around 35% in Virginia during the mid 1940s (Sandoz and Hopkins, 1947). Zaops ostreum rarely infests hosts other than the eastern oyster.…”

Further observations on zooplankton of the Potengi Estuary (Natal, Rio Grande do Norte, Brazil) with special reference to the larvae of Brachyura (Crustacea, Decapoda)

“…The larva described above has some striking featureS such as the tlattened abdomen with lateral expansion of the fifth segment and th e presence of a triangular lohe in the middle of the distal end of teison. The prese nce of the median lohe on the telson is a characteristic feature of so me of the species of Pillllofher('.I' (LEBOUR 1928 ;SANDOZ & HOPKINS 1947 ;NOBLE 1974: RI CE 1975PREGEN ZER 1979) (Fig, 9) [)lagno,I"', Carap,l l' e (i-ig , 9) ha, \ 'ery I()ng and thin rostral sp int' and anknna, ro,tral ,pille di,tlllL'lly IOllg e r than dorsal Spille whidl IS als() hlllg alld thin : lall'nti sp ill e i ... \'l' ry redul'ed alld slightly up-turtlt'li Ill\lanl ... the tip, EYe, are , eSS Iit' at thi s s lag" Ahdolllen (Fig, lJlI) co nsist.... ()r fi\ 'e 'l'", IllL' nh alld Id,Oll, ,eL'llild "','glllellt has a pall' or anterolatcrally dirt'L'le d lohe, I()c akd ne arer allterior horckr , third se", me nt has a pall' of nltll' h smaller projt'l, tion also plal't'lI,' lllsL'J' to th e anterior hordeI' : le lson deeply tllJ'ked, long and is almo, st threet-fourth t()tal le ngth or rin' , segmellh, di s tal elld ()r tciSOIl has normal three pair, of setae as well as a small ,eta on the d()rsa l s urface ,jus t hey()nd th e (Hlkrmllst seta of th e distal hord eI', Antennule I Fig, 9B) IS alm()st (wal ill shape and el()ngate'll alld \I 'ith a spinult' and two asthetasl' " /\ntenna (Fig, ()C) is c'Xtremly IOllg alld only \'e ry , lightly "horkr than long rostral ... pinc , it IS in th e form ()r a lOll", prm'e" whi c h ha ... a fL '\\ ... pi ,' ules near th e di , tal e nd, rvla x illule (Fig, lJD) ha, a tW() -lointed e lldoj1()dik w hi l' h IS prm'id, d With fi\ 'e IOll g setae at th , di , ... tal e nd as \\'t'11 as allother ,da O il th . : ha ... al Sc'!~l1lc' llt: ha,al alld c oxal t' ndik s hal e four setae ea,' h , Scaph()gnathite ()f III a x ilia (Fig , 9F) l'arri es four pIUIIl(), St' sdaL' on it s ()uter hord e I' : e lldopmlik is hilohed and ha ... thrt't' and h\,,: setal; on proximal and di s tal lohc'''' re, pec tl\ 'e l): ha ... al e nditc is htl o hed and arllled \I'lth Ilill e , da L: allli l'oxa l end I k has fi \ 'e ,t' ta e, I'rot llpodik Ilt Illaxilliped I (Fig , 9F) is prm'id t' d \\ 'Ith t' lght sdac' and fi\ 'e-se gl1le ntt'd e nd()podlk ha s setae dl,trthukd a, tillhl\I'''' fnlm first to fifth ,,'g lll ellt: 2, 2, I , :2 and -l: e xopodite l' arri e s four S\\'llllllllng , ... da e at thc' lip, Zoea 003 (Fig 13) I' hh lal \a \'«' a 1 ... 0 co ll n'ted all thl o ugh th e )ea r a, 1ll,' lltHlIlL'd hl'fm L' hut all th t' Ian aL' III th .. ',Ullple-, hL' longc'd to ~t"gc' i , i)1",l1o' I' , (';u '<I ); (" " (Fig, 11 :\ rostral; dorsal spine largest and curved posteriorly, lateral spine shortest.…”