门 |
涵义 |
名称 |
分类特征 |
种类 |
---|
棘头动物门 | Thorny headed worms | Thorny-headed worms | Reversible spiny proboscis | 7002756000000000000approx. 756 |
无腔动物门 | Without gut | Acoels | No mouth or alimentary canal (alimentary canal = digestive tract in digestive system) | |
环节动物门 | Little ring | Segmented worms | 生物体柔软,分节 | 700417000000000000017,000+ extant |
节肢动物门 | Jointed foot | Arthropods | 甲壳素外骨骼 | 70061134000000000001,134,000+ |
腕足动物门 | Arm foot | Lamp shells | Lophophore,有肉茎 | 7002300000000000000300-500 extant |
外肛动物门 | Moss animals | Moss animals, sea mats | Lophophore,没有肉茎,ciliated tentacles | 70035000000000000005,000 extant |
毛颚动物门 | Longhair jaw | Arrow worms | 在头和鳍的两边均有几丁质组成的尖刺 | 7002100000000000000approx. 100 extant |
脊索动物门 | Cord | Chordates | Hollow dorsal nerve cord, 脊索, pharyngeal slits, endostyle, 肛门 | 7005100000000000000approx. 100,000+ |
刺胞动物门 | Stinging nettle | Coelenterates | Nematocysts (stinging cells) | 7004110000000000000approx. 11,000 |
栉水母动物门 | Comb bearer | Comb jellies | Eight "comb rows" of fused cilia | 7002100000000000000approx. 100 extant |
环口动物门 | Wheel carrying | Symbion | Circular mouth surrounded by small cilia | 70003000000000000003+ |
棘皮动物门 | Spiny skin | Echinoderms | Fivefold radial symmetry in living forms, mesodermal calcified spines | 7003700000000000000approx. 7,000 extant; approx. 13,000 extinct |
内肛动物门 | Inside anus | Goblet worm | Anus inside ring of cilia | 7002150000000000000approx. 150 |
腹毛动物门 | Hair stomach | Meiofauna | Two terminal adhesive tubes | 7002690000000000000approx. 690 |
颚胃动物门 | Jaw orifice | Jaw worms | | 7002100000000000000approx. 100 |
半索动物门 | Half cord | Acorn worms, pterobranchs | Stomochord in collar, pharyngeal slits | 7002100000000000000approx. 100 extant |
动吻动物门 | Motion snout | Mud dragons | Eleven segments, each with a dorsal plate | 7002150000000000000approx. 150 |
铠甲动物门 | Corset bearer | Brush heads | Umbrella-like scales at each end | 7002122000000000000approx. 122 |
微颚动物门 | Tiny jaw animals | — | Accordion like extensible thorax | 70001000000000000001 |
软件动物门 | Soft | Mollusks / molluscs | Muscular foot and mantle round shell | 7005112000000000000112,000[2] |
线虫动物门 | Thread like | Round worms | Round cross section, keratin cuticle | 700480000000000000080,000–1,000,000 |
线形动物门 | Thread form | Horsehair worms | | 7002320000000000000approx. 320 |
纽形动物门 | A sea nymph | Ribbon worms | | 7003120000000000000approx. 1,200 |
有爪动物门 | Claw bearer | Velvet worms | Legs tipped by chitinous claws | 7002200000000000000approx. 200 extant |
直泳虫门 | Straight swim | | Single layer of ciliated cells surrounding a mass of sex cells | 7001200000000000000approx. 20 |
帚虫动物门 | Zeus's mistress | Horseshoe worms | U-shaped gut | 700120000000000000020 |
扁盘动物门 | Plate animals | | | 70001000000000000001 |
扁形动物门 | Flat worms | Flat worms | | 7004250000000000000approx. 25,000[3] |
多孔动物门* | Pore bearer | Sponges | Perforated interior wall | 70035000000000000005,000+ extant |
鳃曳动物门 | Little Priapus | | | 700116000000000000016 |
菱形虫门 | Lozenge animal | — | Single axial cell surrounded by ciliated cells | 700175000000000000075 |
轮形动物门 | Wheel bearer | Rotifers | Anterior crown of cilia | 7003200000000000000approx. 2,000 |
星虫动物门 | Small tube | Peanut worms | Mouth surrounded by invertible tentacles | 7002144000000000000144–320 |
缓步动物门 | Slow step | Water bears | Four segmented body and head | 70031000000000000001,000+ |
异涡动物门 | Strange flatworm | — | Ciliated deuterostome | 70002000000000000002 |
Total: 35 | | | | 2,000,000- |