镜眼虫

镜眼虫（学名：Phacops）是生存于晚奥陶纪至晚泥盆纪的一属三叶虫，生活在温暖的浅海中。这类三叶虫有着向前扩展的凸状头鞍，上有结节状饰纹。巨大的眼睛象征其拥有较佳的视力。胸部分为12节，每个体节都有许多面，使其能更容易地卷曲身体以躲避危险。尾部比头部小得多，上有深沟。

## 物种

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- Phacops accipitrinus (Phillips, 1841)
- Phacops algericus Alberti, 1983
- Phacops breviceps Barrande, 1846
- Phacops chlupaci Alberti, 1983
- Phacops circumspectans Paeckelmann, 1913
- Phacops degener Barrande, 1852
- Phacops fecundus
- Phacops fragosus Struve, 1970
- Phacops granulatus (Munster, 1840) 异名 Calymene granulata, P. posidoniae
- Phacops hoseri Hawle & Corda, 1847
- Phacops iowensis Delo, 1935
- Phacops imitator Struve, 1970
- Phacops kockeli Alberti, 1968
- Phacops latifrons (Bronn, 1825) 异名 Calymene latifrons
- Phacops maurulus
- Phacops modestus Barrande
- Phacops platilegnotor
- Phacops salteri Kozlowski, 1923
- Phacops sartenaeri Struve, 1985
- Phacops sobolevi Kielan, 1954
- Phacops sternbergi
- Phacops turco Richter & Richter
- Phacops wedekindi Richter & Richter, 1926
- Phacops zinkeni F.A. Roemer, 1843

### 重新分配的物种

以下的物种现时已被置入其他属。

- Phacops acuticeps = Acuticryphops acuticeps
- Phacops arcticus = Acernaspis arctica
- Phacops asper = Ananaspis aspera
- Phacops birdsongensis = Paciphacops birdsongensis
- Phacops boecki = Boeckops boecki
- Phacops braziliensis = Phacopidina braziliensis
- Phacops bronni = Reedops bronni
- Phacops bulliceps = Eophacops bulliceps
- Phacops caecus = Trimerocephalus caecus
- Phacops caffer = Metacryphaeus caffer
- Phacops cambelli = Paciphacops cambelli
- Phacops claviger = Paciphacops claviger
- Phacops caudatus = Dalmanites caudatus
- Phacops constrictus = Acastoides constrictus
- Phacops coronatus = Heliocephalus coronatus
- Phacops cristatus bombifrons = Viaphacops bombifrons
- Phacops cristatus cristatus = Viaphacops cristatus
- Phacops crossleii = Paciphacops crossleii
- Phacops cryptophthalmoides = Trimerocephalus cryptophthalmoides
- Phacops cryptophthalmus = Cryphops cryptophthalmus
- Phacops cultifrons = Eophacops trapeziceps
- Phacops dagincourti = Bouleia dagincourti
- Phacops deshayesi = Zeliszkella deshayesi
- Phacops downingiae var. α. vulgaris = Acaste downingiae
- Phacops downingiae var. β. macrops = Acastocephala macrops
- Phacops downingiae var. γ. inflatus = Acaste inflata
- Phacops ensae = Weyerites ensae
- Phacops fecundus = Ananaspis fecunda
- Phacops fecundus minor = Lochkovella minor
- Phacops ferdinandi = Chotecops ferdinandi
- Phacops glaber = Eophacops glaber
- Phacops glockeri = Phacopidella glockeri
- Phacops grimbergi = Lochkovella grimbergi
- Phacops handwerki = Eophacops handwerki
- Phacops hanusi = Lochkovella hanusi
- Phacops hoeninghausi = Prokops hoeninghausi
- Phacops hudsonicus = Paciphacops hudsonicus
- Phacops incisus = Nephranops incisus
- Phacops khatangensis = Acernaspis khatangensis
- Phacops kayseri = Eocryphops kayseri
- Phacops lacunosus = Trimerocephalus lacunosus
- Phacops latigenalis = Paciphacops latigenalis
- Phacops latilimbatus = Cryphops latilimbatus
- Phacops lentiginosus = Trimerocephalus lentiginosus
- Phacops limbatus = Dianops limbatus
- Phacops logani = Paciphacops logani
- Phacops lopatini = Monorakos lopatini
- Phacops mancus = Eophacops mancus
- Phacops marklandensis = Acernaspis marklandensis
- Phacops mastophthalmus = Trimerocephalus mastophthalmus
- Phacops metacernaspis = generic assignment uncertain
- Phacops michelini = Pseudocryphaeus michelini
- Phacops microps = Kainops microps
- Phacops milleri = Eldredgeops milleri
- Phacops miser = Lochkovella miser
- Phacops musheni = Eophacops musheni
- Phacops nudus = generic assignment uncertain
- Phacops ocellus = Hadrorachus ocellus
- Phacops opitzi = Chotecops opitzi
- Phacops orestes = Acernaspis orestes
- Phacops orientalis = Ananaspis orientalis
- Phacops parabolus = Phillipsinella parabola
- Phacops phillipsi = Kloucekia phillipsi
- Phacops primaevus = Acernaspis primaeva
- Phacops prokopi = Prokops prokopi
- Phacops pulcellus = Acernaspis pulcella
- Phacops quadrilineatus = Acernaspis quadrilineata
- Phacops rana = Eldredgeops rana
- Phacops raymondi = Kainops raymondi
- Phacops schlosseri = Struveops schlosseri
- Phacops serratus = Paciphacops serratus
- Phacops schlotheimi = Geesops schlotheimi
- Phacops socialis = Dalmanitina socialis
- Phacops speculator = Austerops speculator
- Phacops sphaericeps = Dereimsia sphaericeps
- Phacops steinachensis = Trimerocephalus steinachensis
- Phacops stellifer = Greenops (Neometacanthus) stellifer
- Phacops stokesii = generic assignment uncertain
- Phacops straitonensis = Podowrinella straitonensis
- Phacops trapeziceps = Eophacops trapeziceps
- Phacops veles = Kainops veles
- Phacops vodorezovi = Trimerocephalus vodorezovi
- Phacops volborthi = Denckmannites volborthi
- Phacops wocklumeriae = Weyerites wocklumeriae

## 基本资料

- 学名：Phacops
- 命名者：1839
- 说明：蛙形镜眼虫（Phacops rana）
- 模式种：Calymene latifrons
- type_species_authority：Bronn, 1825
- subdivision_ranks：种
- 栽培群成员：见内文
- 异名：Portlockia、Somatrikelon、Somatrikopon