{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,17]],"date-time":"2026-08-17T14:49:38Z","timestamp":1786978178361,"version":"build-2736575974"},"reference-count":88,"publisher":"Wiley","issue":"6","license":[{"start":{"date-parts":[[2007,4,6]],"date-time":"2007-04-06T00:00:00Z","timestamp":1175817600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Journal of Morphology"],"published-print":{"date-parts":[[2007,6]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>\n                    The predominantly non\u2010Antarctic family Bovichtidae is phyletically basal within the perciform suborder Notothenioidei, the dominant component of the Antarctic fish fauna. In this article we focus on the South Atlantic bovichtids\n                    <jats:italic>Bovichtus diacanthus,<\/jats:italic>\n                    the klipfish from tide pools at Tristan da Cunha, and\n                    <jats:italic>Cottoperca gobio,<\/jats:italic>\n                    the frogmouth from the Patagonian shelf and Falkland Islands. We document the anatomy and histology of the brains, olfactory apparatus, retina, and cephalic lateral line system. We also use the microvascular casting agent Microfil\u00ae to examine ocular vascular structures. We provide detailed drawings of the brains and cranial nerves of both species. Typical of perciforms, the brains of both species have a well\u2010developed tectum and telencephalon and robust thalamic nuclei. The telencephalon of\n                    <jats:italic>C. gobio<\/jats:italic>\n                    is prominently lobed, with the dorsomedial nucleus more conspicuous than in any other notothenioid. The corpus cerebelli is relatively small and upright and, unlike other notothenioids, has prominent transverse sulci on the dorsal and caudal surfaces. Areas for lateral line mechanoreception (eminentia granularis and crista cerebellaris) are also conspicuous but olfactory, gustatory, and somatosensory areas are less prominent. The anterior lateral line nerve complex is larger than the posterior lateral line nerve in\n                    <jats:italic>B. diacanthus,<\/jats:italic>\n                    and in their cephalic lateral line systems both species possess branched membranous tubules (which do not contain neuromasts) with small pores. These are especially complex in\n                    <jats:italic>B. diacanthus<\/jats:italic>\n                    where they become increasingly branched and more highly pored in progressively larger specimens. Superficial neuromasts are sparse. Both species have duplex (cone and rod) retinae that are 1.25\u2010fold thicker and have nearly 5\u2010fold more photoreceptors and than those of most Antarctic notothenioids. Convergence ratios are also high for bovichtids.\n                    <jats:italic>Bovichtus diacanthus<\/jats:italic>\n                    has a yellow intraocular filter in the dorsal aspect of the cornea. Both species are unique among notothenioids in possessing all three vascular structures present in the generalized teleostean eye: the choroid rete mirabile, the lentiform body (also a rete), and the falciform process. When comparing the phyletically derived Antarctic clade exemplified by the families Artedidraconidae, Bathydraconidae, and Channichthyidae to the phyletically basal bovichtids, we observe phyletic regression and reduction in some regions of the brain and in some sensory modalities that are well displayed in bovichtids. In the phyletically derived families the brain is less cellular and nuclei are smaller and less prominent. In some species reduction in the size of the telencephalon, tectum, and corpus cerebelli imparts a \u201cstalked\u201d appearance to the brain with the neural axis visible between the reduced lobes. There is also a phyletic reduction in the number of ocular vascular structures from three in bovichtids to one or none in artedidraconids, bathydraconids, and channichthyids. There are no morphological features of bovichtid brains and sense organs that presage the divergence of the phyletically derived members of the clade in the Antarctic marine environment with its cold and deep continental shelves. We conclude that this environment does not require sensory or neural morphology or capabilities beyond those provided by the basic perciform body plan. J. Morphol., 2007. \u00a9 2007 Wiley\u2010Liss, Inc.\n                  <\/jats:p>","DOI":"10.1002\/jmor.10534","type":"journal-article","created":{"date-parts":[[2007,4,6]],"date-time":"2007-04-06T15:19:48Z","timestamp":1175872788000},"page":"485-503","source":"Crossref","is-referenced-by-count":21,"title":["Brain and sense organ anatomy and histology of two species of phyletically basal non\u2010Antarctic thornfishes of the Antarctic suborder Notothenioidei (Perciformes: Bovichtidae)"],"prefix":"10.1002","volume":"268","author":[{"given":"Joseph T.","family":"Eastman","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Michael J.","family":"Lannoo","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2007,4,6]]},"reference":[{"key":"e_1_2_1_2_1","first-page":"347","article-title":"Intraocular vascular supply in some marine teleosts","volume":"27","author":"Anctil M","year":"1968","journal-title":"Rev Can Biol"},{"key":"e_1_2_1_3_1","first-page":"1","article-title":"Genera and subfamilies of the family Nototheniidae (Pisces, Perciformes) from the Antarctic and Subantarctic","volume":"10","author":"Andersen NC","year":"1984","journal-title":"Steenstrupia"},{"key":"e_1_2_1_4_1","first-page":"28","volume-title":"Fishes of the Southern Ocean","author":"Anderson ME","year":"1990"},{"key":"e_1_2_1_5_1","first-page":"1","article-title":"Fishes of the Tristan da Cunha Group and Gough Island, South Atlantic Ocean","volume":"63","author":"Andrew TG","year":"1995","journal-title":"Ichthyol Bull JLB Smith Inst Ichthyol"},{"key":"e_1_2_1_6_1","series-title":"Biogeography and ecology in Antarctica, monographiae biologicae","first-page":"491","author":"Andriashev AP","year":"1965"},{"key":"e_1_2_1_7_1","first-page":"90","article-title":"Classification, phylogenetic relationships, and origins of the families of the suborder Notothenioidei (Perciformes)","volume":"32","author":"Balushkin AV","year":"1992","journal-title":"J Ichthyol"},{"issue":"1","key":"e_1_2_1_8_1","first-page":"S74","article-title":"Morphology, classification, and evolution of notothenioid fishes of the Southern Ocean (Notothenioidei, Perciformes)","volume":"40","author":"Balushkin AV","year":"2000","journal-title":"J Ichthyol"},{"key":"e_1_2_1_9_1","first-page":"854","article-title":"Molecular evolution at subzero temperatures: Mitochondrial and nuclear phylogenies of fishes from Antarctica (suborder Notothenioidei), and the evolution of antifreeze glycopeptides","volume":"11","author":"Bargelloni L","year":"1994","journal-title":"Mol Biol Evol"},{"key":"e_1_2_1_10_1","first-page":"45","volume-title":"Antarctic communities: species, structure and survival","author":"Bargelloni L","year":"1997"},{"key":"e_1_2_1_11_1","doi-asserted-by":"publisher","DOI":"10.1080\/10635150050207429"},{"key":"e_1_2_1_12_1","doi-asserted-by":"publisher","DOI":"10.1007\/BF00002213"},{"key":"e_1_2_1_13_1","doi-asserted-by":"publisher","DOI":"10.1126\/science.1107793"},{"key":"e_1_2_1_14_1","doi-asserted-by":"publisher","DOI":"10.1023\/B:EBFI.0000029340.57735.f8"},{"key":"e_1_2_1_15_1","doi-asserted-by":"publisher","DOI":"10.1073\/pnas.94.8.3811"},{"key":"e_1_2_1_16_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.tree.2004.10.004"},{"key":"e_1_2_1_17_1","doi-asserted-by":"publisher","DOI":"10.1016\/0042-6989(89)90089-8"},{"key":"e_1_2_1_18_1","doi-asserted-by":"publisher","DOI":"10.1159\/000113914"},{"key":"e_1_2_1_19_1","doi-asserted-by":"publisher","DOI":"10.1007\/978-1-4612-3714-3_22"},{"key":"e_1_2_1_20_1","series-title":"Functional vascularization of the teleost eye. 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