@article {414,
	title = {Notas sobre la histologia y ultrastructura del sistema nervioso de Phascolosoma granulatum (Sipunculoidea) _______________________},
	journal = {Separata de la revista de la "Facultad de Ciencias"},
	volume = {14},
	number = {2},
	year = {1973},
	note = {@ IN SPANISH, NO ENGL ABST. TRANSLATION OF CONCLUSION; HISTOLOG. STUDY OF THE BRAIN OF PH. GRAN. SHOW THE PRESENCE OF 3 TYPES OF NEURONS. 1 OF THEM IS NEUROSECRETORY; THE NEURONS OF THE NERVE CORD PRESENTS A TYPICAL DISPOSITION WHICH PERHAPS COORESPONDS TO A SUGGESTION/BEGINNING OF METAMERIZATION. THE STUDY WITH THE E.M. OF THIS CORD SHOWS THE EXISTANCE OF SEVERAL PROTECTIVE TISSUES. *FROM TEXT* NRV TISSUE BECAUSE DELIC \& CANNOT BE REPAIRED HAS PROTECTIVE SYSTEMS. BRAIN IS SURROUNDED BY A PERICEREBRAL SINUS \&y MUCH CONNECTIVE TISSUE. IN THE NRV. CRD. THERE ARE NOT THESE BUT THE INTERNAL LAYERS ENDOTHELIUM FUNCTION AS A KIND OF PILLOW/CUSHION FOR PROTECTION. INTERALLY THE AXONS (AMIELINICOS/WITHOUT MYELIN) ARE SEPARATED FROM EACH OTHER BY CONNECTIVE TISSUE WITH WEB OF COLLAGEN FIBERS.},
	pages = {123-132},
	keywords = {nervous, ph. granulatum},
	author = {Martinez, J. L.}
}
@article {106,
	title = {A study of the nervous system of the sipunculoideae, with some remarks on the development of the two species <i>Phascolion strombi</i> Montagu and <i>Golfingia minuta</i> Keferstein},
	journal = {Undersokningar over Oresund},
	volume = {38},
	year = {1958},
	note = {@ SUMMARY: 1. WHERE WORK DONE 2. DEVEL OF P{\textquoteright}LION STROMBI \& G. MINUTA STUDIED. STROM VERY SIMIL TO G. VULG \& G. GOULDI - ALL PRIMITIVE; \& SIMILAR TO POLYCH. LONG BREEDING SEASON, GAMETES DEVEL IN COELOM, SPAWNING OF EPIDEMIC TYPE. EARLY CL. SPIRAL; EPIBOLIC GASTRUL.; EMBRY W 6 DAY PELAGIC STGE; DURING PELAG. STAGE THEY{\textquoteright}RE BOTTOM DWELLERS, NEVER FOUND IN PLANKTON; LECITOTROPHIC \& PELAG PH. FOR DISPERSAL ONLY. AT END OF PELAG, EGG MEMB > CUTICULA \& WITHIN THIS SHELTER THE PROTOTROCH DISOLVED \& YOLK FORCED INTO COELOM. AT SAME TIME FIRST CIRCLET OF EPIDERMAL ORGANS APPEAR. EVENTUALLY = 6 CIRCL; \& METAMERIC ARRANGEMENT (?) SAME AS IN G. ELONG.; HAVE DELECATE BRISTLES = CONDENSED SECRETION. DIR. DEV \& BROOD PROTECTIONS; LARV. EPI ORG. FORMED BUT NO BRIST \& RANDOM ARRANGM. 3. RETS \& CIRC. MUSCL DEVEL FROM ECTOMESOBLASTS. LONGI MUSCL FROM SOMATIC LAYER OF MESODERM SACS. VENT NRV CRD DELAMINATED FROM ECTODERM BEFORE CIRC. MUSC FORMED. CONNEC TISS \& PARANEURAL MUSC FROM MESOD SACS. V.N.C BEGINS AS UNPAIRED MEDIAN THICKENING. SECRE. FUNCT. THIS REDUCES LATER. 4. THESE 2 SPP COMPARED TO OTHERS 5. NERV. SYST OF 14 SPP IN 8 GENERA; SMALLER SPP W SIMPLER BRAINS, LARGER W MORE COMPLEX; IN SIPUNCULSU \& G. MINUTA BRAIN MOVED POST \& CONNECTED VIA CEREBRAL TUBE TO OUTSIDE; OTHERS W BRAIN IN CLOSE CONTACT WITH TENTAC.; CEREBR. ORG. WELL DEV IN SIP{\textquoteright}LUS ONLY. ?PERHAPS ONLY VESTIGE OF LARV. CER. ORG. EYES OF ADULT OF EVERSE TYPE - ECTODERMAL INFOLDINGS W SOLID CUTICULAR PLUGS IN S{\textquoteright}LUS, SMALL SPP (PRIM{\textquoteright}VE); IN MORE HIGHLY ORGANIZED EYES THE INNERMOST PART OF EYE IS DISTENDED \& FILLED W AMORPHOUS SECRETION. BEST DEV. EYES IS GOLF(GOLF) \& DENDROST. CYMOD.; THESE HAVE REFRACTIVE BODY IN INNER PART OF OCULAR TUBE. IN SIP{\textquoteright}LUS SECONDARY {\textquoteright}TENTACULAR{\textquoteright} EYES DEVEL; NUCHAL ORG. FOUND IN ALL; IN PHAS, ASP \& S{\textquoteright}SOMA ANT PRT OF V.N.C. CONNECTED TO SPEC. SENS ORG., POSSIBLY RUDIM STATOCYST. NEUROSECRET. IN ALL; PRODUCTS RELEASED INTO COELOM AND/OR POLIAN VESS; OTHERS INTO CENTRAL NEUROPILE. DIGITATE PROC. OF S{\textquoteright}LUS STORE NEUROSEC. PROD.; 6. V.N.C. MORPH {\textendash} NO METAM; LATERL. NRV.; PARAN MUSCL; SPEC. UNDIFFERENTIATED CELLS {\textquoteright}REGENERATION CELLS{\textquoteright} IN NRV. CRD.; WILL FORM ECTODERML PRT OF REGEN INTROV; IN S{\textquoteright}LUS TERM PRT OF VNC = TERM GANGL CONNECTS W SECRET. TERMINL ORG; SECRE EXTERNL (SEE AKES.MON)*},
	pages = {1-249},
	keywords = {development, histology, nervous, ORGAN SYST.},
	author = {{\r A}kesson, B.}
}
@article {297,
	title = {The eyes and nervous system of Phascolosoma verrillii and other sipunculids},
	journal = {Travaux Station zoologique de Wimereux},
	volume = {13},
	year = {1938},
	note = {@ LIVE MATERIAL FROM WOODS HOLE; LARGE EYESPOTS / BRAIN \& V.N.C. / PLATE 18 $\#$1-5 BRAIN/OCCULAR TUBE/NUCHAL ORGAN; FIG 6 RECONST. FROM SERIES.; $\#$7-8 OCCULAR TUBE \& $\#$9; BI \& UNIPOLAR CELLS \& MULTIPOLAR IN OPTIC TRACT AT POST OF GANG; FRONTAL/CEREB ORG. SEPARATE FROM BRAIN \& OPTIC; FRONS=FRONTAL ORG=CEREB.ORG; OCULAR TUBES-FRONS TO EYESPOTS - FILLED WITH TRANSPARENT COAGULANT WITH ?RHABDOME? IN CENTER. POSITION VERY NEAR RETRACTORS SIGNIF VIS-A-VIS REACTION TIME. FIG.10 W NRVS; NUCHAL ORGAN, 1 PR. CILIATED ELEVAT. WELL INNERVATED - FUNCTION? CER. NRVS; V.N.C. NOTHING UNIQUE; COMPARISON TO OTHER SIP: FUTURE LOOK AT BURROWING VS OTHER SPP; LONG VS SHORT TUBES \& USE OF EYES / DEPTH? CEREBRAL TUBES DIFF \& DO NOT RELATE TO BRAIN; SHOULD USE CEPHALIC TUBE; S.NUDUS \& TH.SIGN OF AWATI/PRADH -WARD{\textquoteright}S S.NUDUS; OCULAR TUBE DIFF FROM CEPHALIC TUBES; ANDREWS \& P.GOULDI O.K.; CUENOT \& P.VULGARE O.K. TOO. SENSORY \& GLANDULAR PAPILLAE; EPID ORG. FIG.11 OF COLUMNAR , GLAND, EPITHELIAL SENSORY CELLS (BIPOLAR SLENDER, ELONGATE OVAL NUCL) GLAND CL OVAL..DUCT THRU PAP, CENTRAL CAVITY; THICK CUTICLE VESICLES; *SEE F4 FOR SUMMARY. SUMMARY; EYE SPOT OF TROCH DEV INTO PR OF OC TUBES IN CER GANG; CONSPIC OC. TUBES WITH SPINDLE SHAPED REFRACTILE BODY SURR BY COAGULUM; FRONTAL ORG PARTLY SEP FROM BRAIN BY CONN TISS; FRONTAL ORG IN OLDER SPECIM...},
	pages = {313-325},
	keywords = {nervous, ocelli, ph. verrilli},
	author = {Gerould, J. H.}
}
