Dodatak:Popisi paučnjaka, Bu

Buc

Buckupiella Brescovit, 1997

1. Buckupiella imperatriz Brescovit, 1997

Arachnida → Araneae → Anyphaenidae , Bucranium

Bui

Buibui Griswold, 2001

1. Buibui abyssinica Griswold, 2001
2. Buibui claviger Griswold, 2001
3. Buibui cyrtata Griswold, 2001
4. Buibui kankamelos Griswold, 2001
5. Buibui orthoskelos Griswold, 2001

Arachnida → Araneae → Cyatholipidae , Buitinga

Buk

, Bukitritia

Bul

, Bulbocepheus , Bulleremaeus , Bulolia

Bum

Bumba Pérez-Miles, Bonaldo & Miglio, 2014

• Bumba cabocla (Pérez-Miles 2000),
• Bumba horrida (Schmidt 1994),
• Bumba lennoni Pérez-Miles, Bonaldo & Miglio, 2014 novoitkrivena vrsta
• Bumba pulcherrimaklaasi (Schmidt, 1991)

Arachnida → Araneae → Theraphosidae → Theraphosinae

Najstariji naziv je Iracema Pérez-Miles, 2000; mlađi naziv je Maraca Pérez-Miles (2005); i najmlađi Bumba, koji je prihvačen kao priznat.

Bun

, Bunabodes , Bunaxella

Bur

, Burmattus , Burmezomus

Bursellia Holm, 1962

1. Bursellia cameroonensis Bosmans & Jocqué, 1983
2. Bursellia comata Holm, 1962
3. Bursellia comata kivuensis Holm, 1964
4. Bursellia gibbicervix (Denis, 1962)
5. Bursellia glabra Holm, 1962 tipična vrsta
6. Bursellia holmi Bosmans, 1977
7. Bursellia paghi Jocqué & Scharff, 1986
8. Bursellia setifera (Denis, 1962)
9. Bursellia unicornis Bosmans, 1988

Arachnida → Araneae → Linyphiidae , Bursoplophora

But

, Buthidae

Buthoidea C. L. Koch, 1837

• Porodica Buthidae C. L. Koch, 1837
• Porodica Microcharmidae Lourenço, 1996

Arachnida → Scorpiones → Neoscorpionina → Orthosterni

Buthoscorpio Werner, 1936

• Buthoscorpio chinnarensis novootkrivena vrsta
• Buthoscorpio indicus Lourenço, 2012
• Buthoscorpio politus (Pocock, 1899)
• Buthoscorpio rayalensis Javed, Rao, Mirza, Sanap & Tampal, 2010
• Buthoscorpio sarasinorum (Karsch, 1891)

Arachnida → Scorpiones → Neoscorpionina → Orthosterni → Buthoidea → Buthidae

Buy

Buyina Todd Davies, 1998

• Buyina halifax Davies, 1998
• Buyina yeatesi Davies, 1998

Arachnida → Araneae → Amphinectidae