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An Updated Classification of the Recent Crustacea

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tained in our classification, although <strong>the</strong>re is reason<br />

to believe that this family was erected to accommodate<br />

what are turning out to be highly derived<br />

males <strong>of</strong> some species <strong>of</strong> <strong>the</strong> Leucothoidae (J. Lowry,<br />

pers. comm.). If true, <strong>the</strong> <strong>An</strong>amixidae will have<br />

to be synonymized at some point. A few workers<br />

asked us to ‘‘correct’’ <strong>the</strong> spelling <strong>of</strong> <strong>the</strong> family<br />

name Liljeborgiidae to Lilljeborgiidae to reflect <strong>the</strong><br />

fact that <strong>the</strong> family name honors William Lilljeborg<br />

(1816–1908). The confusion stems from <strong>the</strong> fact<br />

that Vilhelm Liljeborg changed <strong>the</strong> spelling <strong>of</strong> his<br />

name to William Lilljeborg sometime in <strong>the</strong> early<br />

1860s. When Bate (1862) established <strong>the</strong> genus Liljeborgia,<br />

he used <strong>the</strong> <strong>the</strong>n-correct spelling honoring<br />

Vilhelm Liljeborg. Thus, when Stebbing in 1899 established<br />

<strong>the</strong> family Lilejborgiidae based on <strong>the</strong> genus<br />

Liljeborgia, he was obliged to use this spelling<br />

as well even though, by that time, <strong>the</strong> man was<br />

known as William Lilljeborg (J. Lowry, pers.<br />

comm., and see Vader, 1972). (As an aside, <strong>the</strong><br />

spelling <strong>of</strong> <strong>the</strong> genus Lilljeborgiella, erected by<br />

Schellenberg in 1931, is <strong>the</strong>refore also correct, as<br />

by that time <strong>the</strong> name was William Lilljeborg).<br />

All <strong>of</strong> <strong>the</strong> 67 families that Bellan-Santini (1999)<br />

lists as those that ‘‘ne présent pas actuellement de<br />

problème majeur d’interprétation’’ are included in<br />

our list. Bellan-Santini (1999) also lists ano<strong>the</strong>r 24<br />

families that do present problems, and some <strong>of</strong><br />

those are in our list as well. Some <strong>of</strong> <strong>the</strong> names and<br />

dates attributed to some families differ between our<br />

list and hers as well.<br />

SUBORDER CAPRELLIDEA<br />

Takeuchi (1993) indicated that <strong>the</strong> Caprellidea may<br />

not be monophyletic but stopped short <strong>of</strong> proposing<br />

a new classification <strong>of</strong> <strong>the</strong> group. His results<br />

(Takeuchi, 1993, figs. 1, 5) indicated that <strong>the</strong> phtisicids<br />

are <strong>the</strong> sister group to all o<strong>the</strong>r caprellideans<br />

and that <strong>the</strong> paracercopids are more closely related<br />

to <strong>the</strong> caprellid-caprogammarid line (he did not<br />

deal with <strong>the</strong> parasitic family Cyamidae). Thus, we<br />

have removed <strong>the</strong> family Paracercopidae from <strong>the</strong><br />

superfamily Phtisicoidea and have placed it instead<br />

in <strong>the</strong> superfamily Caprelloidea, leaving <strong>the</strong> Phtisicidae<br />

<strong>the</strong> sole family <strong>of</strong> <strong>the</strong> Phtisicoidea. We saw<br />

this move as preferable to creating yet ano<strong>the</strong>r superfamily<br />

(to contain <strong>the</strong> paracercopids) in an already<br />

taxon-dense suborder. In <strong>the</strong> same year and<br />

in <strong>the</strong> same volume, Laubitz (1993) described two<br />

new caprellidean families (Caprellinoididae and<br />

Pariambidae). She also recognized as valid <strong>the</strong> Protellidae<br />

McCain and tentatively suggested some<br />

evolutionary lines or trends within and leading up<br />

to <strong>the</strong> Caprellidea. Some <strong>of</strong> <strong>the</strong>se ideas differ from<br />

those proposed by Takeuchi (1993), although both<br />

workers recognize <strong>the</strong> same eight families (as does<br />

Bellan-Santini, 1999). Also in that same volume,<br />

Kim and Kim (1993) suggested affinities between<br />

caprellideans and corophioids. Margolis et al.<br />

(2000) have suggested that <strong>the</strong> Cyamidae may be<br />

closer to <strong>the</strong> Caprogammaridae-Caprellidae lineage<br />

ra<strong>the</strong>r than to <strong>the</strong> Caprellinoididae-Phtiscidae line,<br />

as suggested by Laubitz (1993). Several names and<br />

dates have reverted to earlier workers (suggestions<br />

<strong>of</strong> L. Holthuis, pers. comm.). The families Aeginellidae<br />

and Dodecadidae have been deleted, as <strong>the</strong>y<br />

are now considered subfamilies <strong>of</strong> <strong>the</strong> Caprellidae<br />

and Phtisicidae (K. Larsen, pers. comm.; Laubitz,<br />

1993). See also Bellan-Santini (1999).<br />

SUBORDER HYPERIIDEA<br />

Workers familiar with hyperiideans may wonder<br />

why we did not follow <strong>the</strong> revision <strong>of</strong> <strong>the</strong> Hyperiidea<br />

by Vinogradov et al. (1982, with English translation<br />

edited by D. Siegel-Causey appearing in<br />

1996). While that work contains much updated information<br />

concerning <strong>the</strong> biology <strong>of</strong> hyperiideans<br />

and nomenclatural changes below <strong>the</strong> level <strong>of</strong> family,<br />

<strong>the</strong> authors followed, for <strong>the</strong> higher classification,<br />

<strong>the</strong> earlier work by Bowman and Gruner<br />

(1973). Thus, <strong>the</strong> Bowman and Abele (1982) classification<br />

is <strong>the</strong> more current <strong>of</strong> <strong>the</strong> two for higher<br />

level taxa, although workers will want to consult<br />

<strong>the</strong> Vinogradov et al. volume for information within<br />

families and genera (D. Causey, pers. comm.).<br />

Our classification is also consistent with <strong>the</strong> classifications<br />

<strong>of</strong> Schram (1986, which in turn was<br />

based largely on Bousfield, 1983) and Bellan-Santini<br />

(1999). Kim and Kim (1993) suggested that hyperiids<br />

may be related to certain leucothoid members<br />

(Amphilochidae and Stenothoidae) <strong>of</strong> <strong>the</strong><br />

Gammaridea.<br />

SUBORDER INGOLFIELLIDEA<br />

Several workers (e.g., J. Holsinger, pers. comm.)<br />

have pointed out that <strong>the</strong> ingolfiellids and metaingolfiellids<br />

may not justify <strong>the</strong>ir own suborder and<br />

could probably be accommodated within <strong>the</strong> Gammaridea.<br />

Indeed, Bowman and Abele (1982) listed<br />

<strong>the</strong>m alphabetically among <strong>the</strong> o<strong>the</strong>r gammaridean<br />

families. However, Holsinger notes at <strong>the</strong> same time<br />

that this view is not universally shared by o<strong>the</strong>r<br />

amphipod workers, and most workers (e.g., Bellan-<br />

Santini, 1999) continue to treat <strong>the</strong>se two families<br />

as <strong>the</strong> sole members <strong>of</strong> <strong>the</strong> suborder Ingolfiellidea.<br />

Vonk and Schram (1998) argue for maintaining<br />

separate status for <strong>the</strong> group. We have retained<br />

<strong>the</strong>ir separate status pending fur<strong>the</strong>r investigations<br />

into <strong>the</strong> group’s affinities.<br />

ORDER ISOPODA<br />

The diversity <strong>of</strong> and fascination with isopods are<br />

reflected in <strong>the</strong> relatively large number <strong>of</strong> carcinologists<br />

currently working on isopod systematics and<br />

phylogeny. Although it is encouraging to see so<br />

many skilled workers dedicated to resolving questions<br />

<strong>of</strong> isopod systematics, <strong>the</strong>re are negative aspects,<br />

one <strong>of</strong> which is <strong>the</strong> relatively large number<br />

<strong>of</strong> responses we received that contained conflicting<br />

ideas or information. For <strong>the</strong> most part, we have<br />

relied on <strong>the</strong> ra<strong>the</strong>r straightforward list <strong>of</strong> <strong>the</strong> ma-<br />

Contributions in Science, Number 39 Rationale 37

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